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[2aea0fd]1/*!
2 * Modernizr v2.8.3
3 * www.modernizr.com
4 *
5 * Copyright (c) Faruk Ates, Paul Irish, Alex Sexton
6 * Available under the BSD and MIT licenses: www.modernizr.com/license/
7 */
8
9/*
10 * Modernizr tests which native CSS3 and HTML5 features are available in
11 * the current UA and makes the results available to you in two ways:
12 * as properties on a global Modernizr object, and as classes on the
13 * <html> element. This information allows you to progressively enhance
14 * your pages with a granular level of control over the experience.
15 *
16 * Modernizr has an optional (not included) conditional resource loader
17 * called Modernizr.load(), based on Yepnope.js (yepnopejs.com).
18 * To get a build that includes Modernizr.load(), as well as choosing
19 * which tests to include, go to www.modernizr.com/download/
20 *
21 * Authors Faruk Ates, Paul Irish, Alex Sexton
22 * Contributors Ryan Seddon, Ben Alman
23 */
24
25window.Modernizr = (function( window, document, undefined ) {
26
27 var version = '2.8.3',
28
29 Modernizr = {},
30
31 /*>>cssclasses*/
32 // option for enabling the HTML classes to be added
33 enableClasses = true,
34 /*>>cssclasses*/
35
36 docElement = document.documentElement,
37
38 /**
39 * Create our "modernizr" element that we do most feature tests on.
40 */
41 mod = 'modernizr',
42 modElem = document.createElement(mod),
43 mStyle = modElem.style,
44
45 /**
46 * Create the input element for various Web Forms feature tests.
47 */
48 inputElem /*>>inputelem*/ = document.createElement('input') /*>>inputelem*/ ,
49
50 /*>>smile*/
51 smile = ':)',
52 /*>>smile*/
53
54 toString = {}.toString,
55
56 // TODO :: make the prefixes more granular
57 /*>>prefixes*/
58 // List of property values to set for css tests. See ticket #21
59 prefixes = ' -webkit- -moz- -o- -ms- '.split(' '),
60 /*>>prefixes*/
61
62 /*>>domprefixes*/
63 // Following spec is to expose vendor-specific style properties as:
64 // elem.style.WebkitBorderRadius
65 // and the following would be incorrect:
66 // elem.style.webkitBorderRadius
67
68 // Webkit ghosts their properties in lowercase but Opera & Moz do not.
69 // Microsoft uses a lowercase `ms` instead of the correct `Ms` in IE8+
70 // erik.eae.net/archives/2008/03/10/21.48.10/
71
72 // More here: github.com/Modernizr/Modernizr/issues/issue/21
73 omPrefixes = 'Webkit Moz O ms',
74
75 cssomPrefixes = omPrefixes.split(' '),
76
77 domPrefixes = omPrefixes.toLowerCase().split(' '),
78 /*>>domprefixes*/
79
80 /*>>ns*/
81 ns = {'svg': 'http://www.w3.org/2000/svg'},
82 /*>>ns*/
83
84 tests = {},
85 inputs = {},
86 attrs = {},
87
88 classes = [],
89
90 slice = classes.slice,
91
92 featureName, // used in testing loop
93
94
95 /*>>teststyles*/
96 // Inject element with style element and some CSS rules
97 injectElementWithStyles = function( rule, callback, nodes, testnames ) {
98
99 var style, ret, node, docOverflow,
100 div = document.createElement('div'),
101 // After page load injecting a fake body doesn't work so check if body exists
102 body = document.body,
103 // IE6 and 7 won't return offsetWidth or offsetHeight unless it's in the body element, so we fake it.
104 fakeBody = body || document.createElement('body');
105
106 if ( parseInt(nodes, 10) ) {
107 // In order not to give false positives we create a node for each test
108 // This also allows the method to scale for unspecified uses
109 while ( nodes-- ) {
110 node = document.createElement('div');
111 node.id = testnames ? testnames[nodes] : mod + (nodes + 1);
112 div.appendChild(node);
113 }
114 }
115
116 // <style> elements in IE6-9 are considered 'NoScope' elements and therefore will be removed
117 // when injected with innerHTML. To get around this you need to prepend the 'NoScope' element
118 // with a 'scoped' element, in our case the soft-hyphen entity as it won't mess with our measurements.
119 // msdn.microsoft.com/en-us/library/ms533897%28VS.85%29.aspx
120 // Documents served as xml will throw if using &shy; so use xml friendly encoded version. See issue #277
121 style = ['&#173;','<style id="s', mod, '">', rule, '</style>'].join('');
122 div.id = mod;
123 // IE6 will false positive on some tests due to the style element inside the test div somehow interfering offsetHeight, so insert it into body or fakebody.
124 // Opera will act all quirky when injecting elements in documentElement when page is served as xml, needs fakebody too. #270
125 (body ? div : fakeBody).innerHTML += style;
126 fakeBody.appendChild(div);
127 if ( !body ) {
128 //avoid crashing IE8, if background image is used
129 fakeBody.style.background = '';
130 //Safari 5.13/5.1.4 OSX stops loading if ::-webkit-scrollbar is used and scrollbars are visible
131 fakeBody.style.overflow = 'hidden';
132 docOverflow = docElement.style.overflow;
133 docElement.style.overflow = 'hidden';
134 docElement.appendChild(fakeBody);
135 }
136
137 ret = callback(div, rule);
138 // If this is done after page load we don't want to remove the body so check if body exists
139 if ( !body ) {
140 fakeBody.parentNode.removeChild(fakeBody);
141 docElement.style.overflow = docOverflow;
142 } else {
143 div.parentNode.removeChild(div);
144 }
145
146 return !!ret;
147
148 },
149 /*>>teststyles*/
150
151 /*>>mq*/
152 // adapted from matchMedia polyfill
153 // by Scott Jehl and Paul Irish
154 // gist.github.com/786768
155 testMediaQuery = function( mq ) {
156
157 var matchMedia = window.matchMedia || window.msMatchMedia;
158 if ( matchMedia ) {
159 return matchMedia(mq) && matchMedia(mq).matches || false;
160 }
161
162 var bool;
163
164 injectElementWithStyles('@media ' + mq + ' { #' + mod + ' { position: absolute; } }', function( node ) {
165 bool = (window.getComputedStyle ?
166 getComputedStyle(node, null) :
167 node.currentStyle)['position'] == 'absolute';
168 });
169
170 return bool;
171
172 },
173 /*>>mq*/
174
175
176 /*>>hasevent*/
177 //
178 // isEventSupported determines if a given element supports the given event
179 // kangax.github.com/iseventsupported/
180 //
181 // The following results are known incorrects:
182 // Modernizr.hasEvent("webkitTransitionEnd", elem) // false negative
183 // Modernizr.hasEvent("textInput") // in Webkit. github.com/Modernizr/Modernizr/issues/333
184 // ...
185 isEventSupported = (function() {
186
187 var TAGNAMES = {
188 'select': 'input', 'change': 'input',
189 'submit': 'form', 'reset': 'form',
190 'error': 'img', 'load': 'img', 'abort': 'img'
191 };
192
193 function isEventSupported( eventName, element ) {
194
195 element = element || document.createElement(TAGNAMES[eventName] || 'div');
196 eventName = 'on' + eventName;
197
198 // When using `setAttribute`, IE skips "unload", WebKit skips "unload" and "resize", whereas `in` "catches" those
199 var isSupported = eventName in element;
200
201 if ( !isSupported ) {
202 // If it has no `setAttribute` (i.e. doesn't implement Node interface), try generic element
203 if ( !element.setAttribute ) {
204 element = document.createElement('div');
205 }
206 if ( element.setAttribute && element.removeAttribute ) {
207 element.setAttribute(eventName, '');
208 isSupported = is(element[eventName], 'function');
209
210 // If property was created, "remove it" (by setting value to `undefined`)
211 if ( !is(element[eventName], 'undefined') ) {
212 element[eventName] = undefined;
213 }
214 element.removeAttribute(eventName);
215 }
216 }
217
218 element = null;
219 return isSupported;
220 }
221 return isEventSupported;
222 })(),
223 /*>>hasevent*/
224
225 // TODO :: Add flag for hasownprop ? didn't last time
226
227 // hasOwnProperty shim by kangax needed for Safari 2.0 support
228 _hasOwnProperty = ({}).hasOwnProperty, hasOwnProp;
229
230 if ( !is(_hasOwnProperty, 'undefined') && !is(_hasOwnProperty.call, 'undefined') ) {
231 hasOwnProp = function (object, property) {
232 return _hasOwnProperty.call(object, property);
233 };
234 }
235 else {
236 hasOwnProp = function (object, property) { /* yes, this can give false positives/negatives, but most of the time we don't care about those */
237 return ((property in object) && is(object.constructor.prototype[property], 'undefined'));
238 };
239 }
240
241 // Adapted from ES5-shim https://github.com/kriskowal/es5-shim/blob/master/es5-shim.js
242 // es5.github.com/#x15.3.4.5
243
244 if (!Function.prototype.bind) {
245 Function.prototype.bind = function bind(that) {
246
247 var target = this;
248
249 if (typeof target != "function") {
250 throw new TypeError();
251 }
252
253 var args = slice.call(arguments, 1),
254 bound = function () {
255
256 if (this instanceof bound) {
257
258 var F = function(){};
259 F.prototype = target.prototype;
260 var self = new F();
261
262 var result = target.apply(
263 self,
264 args.concat(slice.call(arguments))
265 );
266 if (Object(result) === result) {
267 return result;
268 }
269 return self;
270
271 } else {
272
273 return target.apply(
274 that,
275 args.concat(slice.call(arguments))
276 );
277
278 }
279
280 };
281
282 return bound;
283 };
284 }
285
286 /**
287 * setCss applies given styles to the Modernizr DOM node.
288 */
289 function setCss( str ) {
290 mStyle.cssText = str;
291 }
292
293 /**
294 * setCssAll extrapolates all vendor-specific css strings.
295 */
296 function setCssAll( str1, str2 ) {
297 return setCss(prefixes.join(str1 + ';') + ( str2 || '' ));
298 }
299
300 /**
301 * is returns a boolean for if typeof obj is exactly type.
302 */
303 function is( obj, type ) {
304 return typeof obj === type;
305 }
306
307 /**
308 * contains returns a boolean for if substr is found within str.
309 */
310 function contains( str, substr ) {
311 return !!~('' + str).indexOf(substr);
312 }
313
314 /*>>testprop*/
315
316 // testProps is a generic CSS / DOM property test.
317
318 // In testing support for a given CSS property, it's legit to test:
319 // `elem.style[styleName] !== undefined`
320 // If the property is supported it will return an empty string,
321 // if unsupported it will return undefined.
322
323 // We'll take advantage of this quick test and skip setting a style
324 // on our modernizr element, but instead just testing undefined vs
325 // empty string.
326
327 // Because the testing of the CSS property names (with "-", as
328 // opposed to the camelCase DOM properties) is non-portable and
329 // non-standard but works in WebKit and IE (but not Gecko or Opera),
330 // we explicitly reject properties with dashes so that authors
331 // developing in WebKit or IE first don't end up with
332 // browser-specific content by accident.
333
334 function testProps( props, prefixed ) {
335 for ( var i in props ) {
336 var prop = props[i];
337 if ( !contains(prop, "-") && mStyle[prop] !== undefined ) {
338 return prefixed == 'pfx' ? prop : true;
339 }
340 }
341 return false;
342 }
343 /*>>testprop*/
344
345 // TODO :: add testDOMProps
346 /**
347 * testDOMProps is a generic DOM property test; if a browser supports
348 * a certain property, it won't return undefined for it.
349 */
350 function testDOMProps( props, obj, elem ) {
351 for ( var i in props ) {
352 var item = obj[props[i]];
353 if ( item !== undefined) {
354
355 // return the property name as a string
356 if (elem === false) return props[i];
357
358 // let's bind a function
359 if (is(item, 'function')){
360 // default to autobind unless override
361 return item.bind(elem || obj);
362 }
363
364 // return the unbound function or obj or value
365 return item;
366 }
367 }
368 return false;
369 }
370
371 /*>>testallprops*/
372 /**
373 * testPropsAll tests a list of DOM properties we want to check against.
374 * We specify literally ALL possible (known and/or likely) properties on
375 * the element including the non-vendor prefixed one, for forward-
376 * compatibility.
377 */
378 function testPropsAll( prop, prefixed, elem ) {
379
380 var ucProp = prop.charAt(0).toUpperCase() + prop.slice(1),
381 props = (prop + ' ' + cssomPrefixes.join(ucProp + ' ') + ucProp).split(' ');
382
383 // did they call .prefixed('boxSizing') or are we just testing a prop?
384 if(is(prefixed, "string") || is(prefixed, "undefined")) {
385 return testProps(props, prefixed);
386
387 // otherwise, they called .prefixed('requestAnimationFrame', window[, elem])
388 } else {
389 props = (prop + ' ' + (domPrefixes).join(ucProp + ' ') + ucProp).split(' ');
390 return testDOMProps(props, prefixed, elem);
391 }
392 }
393 /*>>testallprops*/
394
395
396 /**
397 * Tests
398 * -----
399 */
400
401 // The *new* flexbox
402 // dev.w3.org/csswg/css3-flexbox
403
404 tests['flexbox'] = function() {
405 return testPropsAll('flexWrap');
406 };
407
408 // The *old* flexbox
409 // www.w3.org/TR/2009/WD-css3-flexbox-20090723/
410
411 tests['flexboxlegacy'] = function() {
412 return testPropsAll('boxDirection');
413 };
414
415 // On the S60 and BB Storm, getContext exists, but always returns undefined
416 // so we actually have to call getContext() to verify
417 // github.com/Modernizr/Modernizr/issues/issue/97/
418
419 tests['canvas'] = function() {
420 var elem = document.createElement('canvas');
421 return !!(elem.getContext && elem.getContext('2d'));
422 };
423
424 tests['canvastext'] = function() {
425 return !!(Modernizr['canvas'] && is(document.createElement('canvas').getContext('2d').fillText, 'function'));
426 };
427
428 // webk.it/70117 is tracking a legit WebGL feature detect proposal
429
430 // We do a soft detect which may false positive in order to avoid
431 // an expensive context creation: bugzil.la/732441
432
433 tests['webgl'] = function() {
434 return !!window.WebGLRenderingContext;
435 };
436
437 /*
438 * The Modernizr.touch test only indicates if the browser supports
439 * touch events, which does not necessarily reflect a touchscreen
440 * device, as evidenced by tablets running Windows 7 or, alas,
441 * the Palm Pre / WebOS (touch) phones.
442 *
443 * Additionally, Chrome (desktop) used to lie about its support on this,
444 * but that has since been rectified: crbug.com/36415
445 *
446 * We also test for Firefox 4 Multitouch Support.
447 *
448 * For more info, see: modernizr.github.com/Modernizr/touch.html
449 */
450
451 tests['touch'] = function() {
452 var bool;
453
454 if(('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch) {
455 bool = true;
456 } else {
457 injectElementWithStyles(['@media (',prefixes.join('touch-enabled),('),mod,')','{#modernizr{top:9px;position:absolute}}'].join(''), function( node ) {
458 bool = node.offsetTop === 9;
459 });
460 }
461
462 return bool;
463 };
464
465
466 // geolocation is often considered a trivial feature detect...
467 // Turns out, it's quite tricky to get right:
468 //
469 // Using !!navigator.geolocation does two things we don't want. It:
470 // 1. Leaks memory in IE9: github.com/Modernizr/Modernizr/issues/513
471 // 2. Disables page caching in WebKit: webk.it/43956
472 //
473 // Meanwhile, in Firefox < 8, an about:config setting could expose
474 // a false positive that would throw an exception: bugzil.la/688158
475
476 tests['geolocation'] = function() {
477 return 'geolocation' in navigator;
478 };
479
480
481 tests['postmessage'] = function() {
482 return !!window.postMessage;
483 };
484
485
486 // Chrome incognito mode used to throw an exception when using openDatabase
487 // It doesn't anymore.
488 tests['websqldatabase'] = function() {
489 return !!window.openDatabase;
490 };
491
492 // Vendors had inconsistent prefixing with the experimental Indexed DB:
493 // - Webkit's implementation is accessible through webkitIndexedDB
494 // - Firefox shipped moz_indexedDB before FF4b9, but since then has been mozIndexedDB
495 // For speed, we don't test the legacy (and beta-only) indexedDB
496 tests['indexedDB'] = function() {
497 return !!testPropsAll("indexedDB", window);
498 };
499
500 // documentMode logic from YUI to filter out IE8 Compat Mode
501 // which false positives.
502 tests['hashchange'] = function() {
503 return isEventSupported('hashchange', window) && (document.documentMode === undefined || document.documentMode > 7);
504 };
505
506 // Per 1.6:
507 // This used to be Modernizr.historymanagement but the longer
508 // name has been deprecated in favor of a shorter and property-matching one.
509 // The old API is still available in 1.6, but as of 2.0 will throw a warning,
510 // and in the first release thereafter disappear entirely.
511 tests['history'] = function() {
512 return !!(window.history && history.pushState);
513 };
514
515 tests['draganddrop'] = function() {
516 var div = document.createElement('div');
517 return ('draggable' in div) || ('ondragstart' in div && 'ondrop' in div);
518 };
519
520 // FF3.6 was EOL'ed on 4/24/12, but the ESR version of FF10
521 // will be supported until FF19 (2/12/13), at which time, ESR becomes FF17.
522 // FF10 still uses prefixes, so check for it until then.
523 // for more ESR info, see: mozilla.org/en-US/firefox/organizations/faq/
524 tests['websockets'] = function() {
525 return 'WebSocket' in window || 'MozWebSocket' in window;
526 };
527
528
529 // css-tricks.com/rgba-browser-support/
530 tests['rgba'] = function() {
531 // Set an rgba() color and check the returned value
532
533 setCss('background-color:rgba(150,255,150,.5)');
534
535 return contains(mStyle.backgroundColor, 'rgba');
536 };
537
538 tests['hsla'] = function() {
539 // Same as rgba(), in fact, browsers re-map hsla() to rgba() internally,
540 // except IE9 who retains it as hsla
541
542 setCss('background-color:hsla(120,40%,100%,.5)');
543
544 return contains(mStyle.backgroundColor, 'rgba') || contains(mStyle.backgroundColor, 'hsla');
545 };
546
547 tests['multiplebgs'] = function() {
548 // Setting multiple images AND a color on the background shorthand property
549 // and then querying the style.background property value for the number of
550 // occurrences of "url(" is a reliable method for detecting ACTUAL support for this!
551
552 setCss('background:url(https://),url(https://),red url(https://)');
553
554 // If the UA supports multiple backgrounds, there should be three occurrences
555 // of the string "url(" in the return value for elemStyle.background
556
557 return (/(url\s*\(.*?){3}/).test(mStyle.background);
558 };
559
560
561
562 // this will false positive in Opera Mini
563 // github.com/Modernizr/Modernizr/issues/396
564
565 tests['backgroundsize'] = function() {
566 return testPropsAll('backgroundSize');
567 };
568
569 tests['borderimage'] = function() {
570 return testPropsAll('borderImage');
571 };
572
573
574 // Super comprehensive table about all the unique implementations of
575 // border-radius: muddledramblings.com/table-of-css3-border-radius-compliance
576
577 tests['borderradius'] = function() {
578 return testPropsAll('borderRadius');
579 };
580
581 // WebOS unfortunately false positives on this test.
582 tests['boxshadow'] = function() {
583 return testPropsAll('boxShadow');
584 };
585
586 // FF3.0 will false positive on this test
587 tests['textshadow'] = function() {
588 return document.createElement('div').style.textShadow === '';
589 };
590
591
592 tests['opacity'] = function() {
593 // Browsers that actually have CSS Opacity implemented have done so
594 // according to spec, which means their return values are within the
595 // range of [0.0,1.0] - including the leading zero.
596
597 setCssAll('opacity:.55');
598
599 // The non-literal . in this regex is intentional:
600 // German Chrome returns this value as 0,55
601 // github.com/Modernizr/Modernizr/issues/#issue/59/comment/516632
602 return (/^0.55$/).test(mStyle.opacity);
603 };
604
605
606 // Note, Android < 4 will pass this test, but can only animate
607 // a single property at a time
608 // goo.gl/v3V4Gp
609 tests['cssanimations'] = function() {
610 return testPropsAll('animationName');
611 };
612
613
614 tests['csscolumns'] = function() {
615 return testPropsAll('columnCount');
616 };
617
618
619 tests['cssgradients'] = function() {
620 /**
621 * For CSS Gradients syntax, please see:
622 * webkit.org/blog/175/introducing-css-gradients/
623 * developer.mozilla.org/en/CSS/-moz-linear-gradient
624 * developer.mozilla.org/en/CSS/-moz-radial-gradient
625 * dev.w3.org/csswg/css3-images/#gradients-
626 */
627
628 var str1 = 'background-image:',
629 str2 = 'gradient(linear,left top,right bottom,from(#9f9),to(white));',
630 str3 = 'linear-gradient(left top,#9f9, white);';
631
632 setCss(
633 // legacy webkit syntax (FIXME: remove when syntax not in use anymore)
634 (str1 + '-webkit- '.split(' ').join(str2 + str1) +
635 // standard syntax // trailing 'background-image:'
636 prefixes.join(str3 + str1)).slice(0, -str1.length)
637 );
638
639 return contains(mStyle.backgroundImage, 'gradient');
640 };
641
642
643 tests['cssreflections'] = function() {
644 return testPropsAll('boxReflect');
645 };
646
647
648 tests['csstransforms'] = function() {
649 return !!testPropsAll('transform');
650 };
651
652
653 tests['csstransforms3d'] = function() {
654
655 var ret = !!testPropsAll('perspective');
656
657 // Webkit's 3D transforms are passed off to the browser's own graphics renderer.
658 // It works fine in Safari on Leopard and Snow Leopard, but not in Chrome in
659 // some conditions. As a result, Webkit typically recognizes the syntax but
660 // will sometimes throw a false positive, thus we must do a more thorough check:
661 if ( ret && 'webkitPerspective' in docElement.style ) {
662
663 // Webkit allows this media query to succeed only if the feature is enabled.
664 // `@media (transform-3d),(-webkit-transform-3d){ ... }`
665 injectElementWithStyles('@media (transform-3d),(-webkit-transform-3d){#modernizr{left:9px;position:absolute;height:3px;}}', function( node, rule ) {
666 ret = node.offsetLeft === 9 && node.offsetHeight === 3;
667 });
668 }
669 return ret;
670 };
671
672
673 tests['csstransitions'] = function() {
674 return testPropsAll('transition');
675 };
676
677
678 /*>>fontface*/
679 // @font-face detection routine by Diego Perini
680 // javascript.nwbox.com/CSSSupport/
681
682 // false positives:
683 // WebOS github.com/Modernizr/Modernizr/issues/342
684 // WP7 github.com/Modernizr/Modernizr/issues/538
685 tests['fontface'] = function() {
686 var bool;
687
688 injectElementWithStyles('@font-face {font-family:"font";src:url("https://")}', function( node, rule ) {
689 var style = document.getElementById('smodernizr'),
690 sheet = style.sheet || style.styleSheet,
691 cssText = sheet ? (sheet.cssRules && sheet.cssRules[0] ? sheet.cssRules[0].cssText : sheet.cssText || '') : '';
692
693 bool = /src/i.test(cssText) && cssText.indexOf(rule.split(' ')[0]) === 0;
694 });
695
696 return bool;
697 };
698 /*>>fontface*/
699
700 // CSS generated content detection
701 tests['generatedcontent'] = function() {
702 var bool;
703
704 injectElementWithStyles(['#',mod,'{font:0/0 a}#',mod,':after{content:"',smile,'";visibility:hidden;font:3px/1 a}'].join(''), function( node ) {
705 bool = node.offsetHeight >= 3;
706 });
707
708 return bool;
709 };
710
711
712
713 // These tests evaluate support of the video/audio elements, as well as
714 // testing what types of content they support.
715 //
716 // We're using the Boolean constructor here, so that we can extend the value
717 // e.g. Modernizr.video // true
718 // Modernizr.video.ogg // 'probably'
719 //
720 // Codec values from : github.com/NielsLeenheer/html5test/blob/9106a8/index.html#L845
721 // thx to NielsLeenheer and zcorpan
722
723 // Note: in some older browsers, "no" was a return value instead of empty string.
724 // It was live in FF3.5.0 and 3.5.1, but fixed in 3.5.2
725 // It was also live in Safari 4.0.0 - 4.0.4, but fixed in 4.0.5
726
727 tests['video'] = function() {
728 var elem = document.createElement('video'),
729 bool = false;
730
731 // IE9 Running on Windows Server SKU can cause an exception to be thrown, bug #224
732 try {
733 if ( bool = !!elem.canPlayType ) {
734 bool = new Boolean(bool);
735 bool.ogg = elem.canPlayType('video/ogg; codecs="theora"') .replace(/^no$/,'');
736
737 // Without QuickTime, this value will be `undefined`. github.com/Modernizr/Modernizr/issues/546
738 bool.h264 = elem.canPlayType('video/mp4; codecs="avc1.42E01E"') .replace(/^no$/,'');
739
740 bool.webm = elem.canPlayType('video/webm; codecs="vp8, vorbis"').replace(/^no$/,'');
741 }
742
743 } catch(e) { }
744
745 return bool;
746 };
747
748 tests['audio'] = function() {
749 var elem = document.createElement('audio'),
750 bool = false;
751
752 try {
753 if ( bool = !!elem.canPlayType ) {
754 bool = new Boolean(bool);
755 bool.ogg = elem.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/,'');
756 bool.mp3 = elem.canPlayType('audio/mpeg;') .replace(/^no$/,'');
757
758 // Mimetypes accepted:
759 // developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements
760 // bit.ly/iphoneoscodecs
761 bool.wav = elem.canPlayType('audio/wav; codecs="1"') .replace(/^no$/,'');
762 bool.m4a = ( elem.canPlayType('audio/x-m4a;') ||
763 elem.canPlayType('audio/aac;')) .replace(/^no$/,'');
764 }
765 } catch(e) { }
766
767 return bool;
768 };
769
770
771 // In FF4, if disabled, window.localStorage should === null.
772
773 // Normally, we could not test that directly and need to do a
774 // `('localStorage' in window) && ` test first because otherwise Firefox will
775 // throw bugzil.la/365772 if cookies are disabled
776
777 // Also in iOS5 Private Browsing mode, attempting to use localStorage.setItem
778 // will throw the exception:
779 // QUOTA_EXCEEDED_ERRROR DOM Exception 22.
780 // Peculiarly, getItem and removeItem calls do not throw.
781
782 // Because we are forced to try/catch this, we'll go aggressive.
783
784 // Just FWIW: IE8 Compat mode supports these features completely:
785 // www.quirksmode.org/dom/html5.html
786 // But IE8 doesn't support either with local files
787
788 tests['localstorage'] = function() {
789 try {
790 localStorage.setItem(mod, mod);
791 localStorage.removeItem(mod);
792 return true;
793 } catch(e) {
794 return false;
795 }
796 };
797
798 tests['sessionstorage'] = function() {
799 try {
800 sessionStorage.setItem(mod, mod);
801 sessionStorage.removeItem(mod);
802 return true;
803 } catch(e) {
804 return false;
805 }
806 };
807
808
809 tests['webworkers'] = function() {
810 return !!window.Worker;
811 };
812
813
814 tests['applicationcache'] = function() {
815 return !!window.applicationCache;
816 };
817
818
819 // Thanks to Erik Dahlstrom
820 tests['svg'] = function() {
821 return !!document.createElementNS && !!document.createElementNS(ns.svg, 'svg').createSVGRect;
822 };
823
824 // specifically for SVG inline in HTML, not within XHTML
825 // test page: paulirish.com/demo/inline-svg
826 tests['inlinesvg'] = function() {
827 var div = document.createElement('div');
828 div.innerHTML = '<svg/>';
829 return (div.firstChild && div.firstChild.namespaceURI) == ns.svg;
830 };
831
832 // SVG SMIL animation
833 tests['smil'] = function() {
834 return !!document.createElementNS && /SVGAnimate/.test(toString.call(document.createElementNS(ns.svg, 'animate')));
835 };
836
837 // This test is only for clip paths in SVG proper, not clip paths on HTML content
838 // demo: srufaculty.sru.edu/david.dailey/svg/newstuff/clipPath4.svg
839
840 // However read the comments to dig into applying SVG clippaths to HTML content here:
841 // github.com/Modernizr/Modernizr/issues/213#issuecomment-1149491
842 tests['svgclippaths'] = function() {
843 return !!document.createElementNS && /SVGClipPath/.test(toString.call(document.createElementNS(ns.svg, 'clipPath')));
844 };
845
846 /*>>webforms*/
847 // input features and input types go directly onto the ret object, bypassing the tests loop.
848 // Hold this guy to execute in a moment.
849 function webforms() {
850 /*>>input*/
851 // Run through HTML5's new input attributes to see if the UA understands any.
852 // We're using f which is the <input> element created early on
853 // Mike Taylr has created a comprehensive resource for testing these attributes
854 // when applied to all input types:
855 // miketaylr.com/code/input-type-attr.html
856 // spec: www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary
857
858 // Only input placeholder is tested while textarea's placeholder is not.
859 // Currently Safari 4 and Opera 11 have support only for the input placeholder
860 // Both tests are available in feature-detects/forms-placeholder.js
861 Modernizr['input'] = (function( props ) {
862 for ( var i = 0, len = props.length; i < len; i++ ) {
863 attrs[ props[i] ] = !!(props[i] in inputElem);
864 }
865 if (attrs.list){
866 // safari false positive's on datalist: webk.it/74252
867 // see also github.com/Modernizr/Modernizr/issues/146
868 attrs.list = !!(document.createElement('datalist') && window.HTMLDataListElement);
869 }
870 return attrs;
871 })('autocomplete autofocus list placeholder max min multiple pattern required step'.split(' '));
872 /*>>input*/
873
874 /*>>inputtypes*/
875 // Run through HTML5's new input types to see if the UA understands any.
876 // This is put behind the tests runloop because it doesn't return a
877 // true/false like all the other tests; instead, it returns an object
878 // containing each input type with its corresponding true/false value
879
880 // Big thanks to @miketaylr for the html5 forms expertise. miketaylr.com/
881 Modernizr['inputtypes'] = (function(props) {
882
883 for ( var i = 0, bool, inputElemType, defaultView, len = props.length; i < len; i++ ) {
884
885 inputElem.setAttribute('type', inputElemType = props[i]);
886 bool = inputElem.type !== 'text';
887
888 // We first check to see if the type we give it sticks..
889 // If the type does, we feed it a textual value, which shouldn't be valid.
890 // If the value doesn't stick, we know there's input sanitization which infers a custom UI
891 if ( bool ) {
892
893 inputElem.value = smile;
894 inputElem.style.cssText = 'position:absolute;visibility:hidden;';
895
896 if ( /^range$/.test(inputElemType) && inputElem.style.WebkitAppearance !== undefined ) {
897
898 docElement.appendChild(inputElem);
899 defaultView = document.defaultView;
900
901 // Safari 2-4 allows the smiley as a value, despite making a slider
902 bool = defaultView.getComputedStyle &&
903 defaultView.getComputedStyle(inputElem, null).WebkitAppearance !== 'textfield' &&
904 // Mobile android web browser has false positive, so must
905 // check the height to see if the widget is actually there.
906 (inputElem.offsetHeight !== 0);
907
908 docElement.removeChild(inputElem);
909
910 } else if ( /^(search|tel)$/.test(inputElemType) ){
911 // Spec doesn't define any special parsing or detectable UI
912 // behaviors so we pass these through as true
913
914 // Interestingly, opera fails the earlier test, so it doesn't
915 // even make it here.
916
917 } else if ( /^(url|email)$/.test(inputElemType) ) {
918 // Real url and email support comes with prebaked validation.
919 bool = inputElem.checkValidity && inputElem.checkValidity() === false;
920
921 } else {
922 // If the upgraded input compontent rejects the :) text, we got a winner
923 bool = inputElem.value != smile;
924 }
925 }
926
927 inputs[ props[i] ] = !!bool;
928 }
929 return inputs;
930 })('search tel url email datetime date month week time datetime-local number range color'.split(' '));
931 /*>>inputtypes*/
932 }
933 /*>>webforms*/
934
935
936 // End of test definitions
937 // -----------------------
938
939
940
941 // Run through all tests and detect their support in the current UA.
942 // todo: hypothetically we could be doing an array of tests and use a basic loop here.
943 for ( var feature in tests ) {
944 if ( hasOwnProp(tests, feature) ) {
945 // run the test, throw the return value into the Modernizr,
946 // then based on that boolean, define an appropriate className
947 // and push it into an array of classes we'll join later.
948 featureName = feature.toLowerCase();
949 Modernizr[featureName] = tests[feature]();
950
951 classes.push((Modernizr[featureName] ? '' : 'no-') + featureName);
952 }
953 }
954
955 /*>>webforms*/
956 // input tests need to run.
957 Modernizr.input || webforms();
958 /*>>webforms*/
959
960
961 /**
962 * addTest allows the user to define their own feature tests
963 * the result will be added onto the Modernizr object,
964 * as well as an appropriate className set on the html element
965 *
966 * @param feature - String naming the feature
967 * @param test - Function returning true if feature is supported, false if not
968 */
969 Modernizr.addTest = function ( feature, test ) {
970 if ( typeof feature == 'object' ) {
971 for ( var key in feature ) {
972 if ( hasOwnProp( feature, key ) ) {
973 Modernizr.addTest( key, feature[ key ] );
974 }
975 }
976 } else {
977
978 feature = feature.toLowerCase();
979
980 if ( Modernizr[feature] !== undefined ) {
981 // we're going to quit if you're trying to overwrite an existing test
982 // if we were to allow it, we'd do this:
983 // var re = new RegExp("\\b(no-)?" + feature + "\\b");
984 // docElement.className = docElement.className.replace( re, '' );
985 // but, no rly, stuff 'em.
986 return Modernizr;
987 }
988
989 test = typeof test == 'function' ? test() : test;
990
991 if (typeof enableClasses !== "undefined" && enableClasses) {
992 docElement.className += ' ' + (test ? '' : 'no-') + feature;
993 }
994 Modernizr[feature] = test;
995
996 }
997
998 return Modernizr; // allow chaining.
999 };
1000
1001
1002 // Reset modElem.cssText to nothing to reduce memory footprint.
1003 setCss('');
1004 modElem = inputElem = null;
1005
1006 /*>>shiv*/
1007 /**
1008 * @preserve HTML5 Shiv prev3.7.1 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
1009 */
1010 ;(function(window, document) {
1011 /*jshint evil:true */
1012 /** version */
1013 var version = '3.7.0';
1014
1015 /** Preset options */
1016 var options = window.html5 || {};
1017
1018 /** Used to skip problem elements */
1019 var reSkip = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i;
1020
1021 /** Not all elements can be cloned in IE **/
1022 var saveClones = /^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i;
1023
1024 /** Detect whether the browser supports default html5 styles */
1025 var supportsHtml5Styles;
1026
1027 /** Name of the expando, to work with multiple documents or to re-shiv one document */
1028 var expando = '_html5shiv';
1029
1030 /** The id for the the documents expando */
1031 var expanID = 0;
1032
1033 /** Cached data for each document */
1034 var expandoData = {};
1035
1036 /** Detect whether the browser supports unknown elements */
1037 var supportsUnknownElements;
1038
1039 (function() {
1040 try {
1041 var a = document.createElement('a');
1042 a.innerHTML = '<xyz></xyz>';
1043 //if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles
1044 supportsHtml5Styles = ('hidden' in a);
1045
1046 supportsUnknownElements = a.childNodes.length == 1 || (function() {
1047 // assign a false positive if unable to shiv
1048 (document.createElement)('a');
1049 var frag = document.createDocumentFragment();
1050 return (
1051 typeof frag.cloneNode == 'undefined' ||
1052 typeof frag.createDocumentFragment == 'undefined' ||
1053 typeof frag.createElement == 'undefined'
1054 );
1055 }());
1056 } catch(e) {
1057 // assign a false positive if detection fails => unable to shiv
1058 supportsHtml5Styles = true;
1059 supportsUnknownElements = true;
1060 }
1061
1062 }());
1063
1064 /*--------------------------------------------------------------------------*/
1065
1066 /**
1067 * Creates a style sheet with the given CSS text and adds it to the document.
1068 * @private
1069 * @param {Document} ownerDocument The document.
1070 * @param {String} cssText The CSS text.
1071 * @returns {StyleSheet} The style element.
1072 */
1073 function addStyleSheet(ownerDocument, cssText) {
1074 var p = ownerDocument.createElement('p'),
1075 parent = ownerDocument.getElementsByTagName('head')[0] || ownerDocument.documentElement;
1076
1077 p.innerHTML = 'x<style>' + cssText + '</style>';
1078 return parent.insertBefore(p.lastChild, parent.firstChild);
1079 }
1080
1081 /**
1082 * Returns the value of `html5.elements` as an array.
1083 * @private
1084 * @returns {Array} An array of shived element node names.
1085 */
1086 function getElements() {
1087 var elements = html5.elements;
1088 return typeof elements == 'string' ? elements.split(' ') : elements;
1089 }
1090
1091 /**
1092 * Returns the data associated to the given document
1093 * @private
1094 * @param {Document} ownerDocument The document.
1095 * @returns {Object} An object of data.
1096 */
1097 function getExpandoData(ownerDocument) {
1098 var data = expandoData[ownerDocument[expando]];
1099 if (!data) {
1100 data = {};
1101 expanID++;
1102 ownerDocument[expando] = expanID;
1103 expandoData[expanID] = data;
1104 }
1105 return data;
1106 }
1107
1108 /**
1109 * returns a shived element for the given nodeName and document
1110 * @memberOf html5
1111 * @param {String} nodeName name of the element
1112 * @param {Document} ownerDocument The context document.
1113 * @returns {Object} The shived element.
1114 */
1115 function createElement(nodeName, ownerDocument, data){
1116 if (!ownerDocument) {
1117 ownerDocument = document;
1118 }
1119 if(supportsUnknownElements){
1120 return ownerDocument.createElement(nodeName);
1121 }
1122 if (!data) {
1123 data = getExpandoData(ownerDocument);
1124 }
1125 var node;
1126
1127 if (data.cache[nodeName]) {
1128 node = data.cache[nodeName].cloneNode();
1129 } else if (saveClones.test(nodeName)) {
1130 node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode();
1131 } else {
1132 node = data.createElem(nodeName);
1133 }
1134
1135 // Avoid adding some elements to fragments in IE < 9 because
1136 // * Attributes like `name` or `type` cannot be set/changed once an element
1137 // is inserted into a document/fragment
1138 // * Link elements with `src` attributes that are inaccessible, as with
1139 // a 403 response, will cause the tab/window to crash
1140 // * Script elements appended to fragments will execute when their `src`
1141 // or `text` property is set
1142 return node.canHaveChildren && !reSkip.test(nodeName) && !node.tagUrn ? data.frag.appendChild(node) : node;
1143 }
1144
1145 /**
1146 * returns a shived DocumentFragment for the given document
1147 * @memberOf html5
1148 * @param {Document} ownerDocument The context document.
1149 * @returns {Object} The shived DocumentFragment.
1150 */
1151 function createDocumentFragment(ownerDocument, data){
1152 if (!ownerDocument) {
1153 ownerDocument = document;
1154 }
1155 if(supportsUnknownElements){
1156 return ownerDocument.createDocumentFragment();
1157 }
1158 data = data || getExpandoData(ownerDocument);
1159 var clone = data.frag.cloneNode(),
1160 i = 0,
1161 elems = getElements(),
1162 l = elems.length;
1163 for(;i<l;i++){
1164 clone.createElement(elems[i]);
1165 }
1166 return clone;
1167 }
1168
1169 /**
1170 * Shivs the `createElement` and `createDocumentFragment` methods of the document.
1171 * @private
1172 * @param {Document|DocumentFragment} ownerDocument The document.
1173 * @param {Object} data of the document.
1174 */
1175 function shivMethods(ownerDocument, data) {
1176 if (!data.cache) {
1177 data.cache = {};
1178 data.createElem = ownerDocument.createElement;
1179 data.createFrag = ownerDocument.createDocumentFragment;
1180 data.frag = data.createFrag();
1181 }
1182
1183
1184 ownerDocument.createElement = function(nodeName) {
1185 //abort shiv
1186 if (!html5.shivMethods) {
1187 return data.createElem(nodeName);
1188 }
1189 return createElement(nodeName, ownerDocument, data);
1190 };
1191
1192 ownerDocument.createDocumentFragment = Function('h,f', 'return function(){' +
1193 'var n=f.cloneNode(),c=n.createElement;' +
1194 'h.shivMethods&&(' +
1195 // unroll the `createElement` calls
1196 getElements().join().replace(/[\w\-]+/g, function(nodeName) {
1197 data.createElem(nodeName);
1198 data.frag.createElement(nodeName);
1199 return 'c("' + nodeName + '")';
1200 }) +
1201 ');return n}'
1202 )(html5, data.frag);
1203 }
1204
1205 /*--------------------------------------------------------------------------*/
1206
1207 /**
1208 * Shivs the given document.
1209 * @memberOf html5
1210 * @param {Document} ownerDocument The document to shiv.
1211 * @returns {Document} The shived document.
1212 */
1213 function shivDocument(ownerDocument) {
1214 if (!ownerDocument) {
1215 ownerDocument = document;
1216 }
1217 var data = getExpandoData(ownerDocument);
1218
1219 if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) {
1220 data.hasCSS = !!addStyleSheet(ownerDocument,
1221 // corrects block display not defined in IE6/7/8/9
1222 'article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}' +
1223 // adds styling not present in IE6/7/8/9
1224 'mark{background:#FF0;color:#000}' +
1225 // hides non-rendered elements
1226 'template{display:none}'
1227 );
1228 }
1229 if (!supportsUnknownElements) {
1230 shivMethods(ownerDocument, data);
1231 }
1232 return ownerDocument;
1233 }
1234
1235 /*--------------------------------------------------------------------------*/
1236
1237 /**
1238 * The `html5` object is exposed so that more elements can be shived and
1239 * existing shiving can be detected on iframes.
1240 * @type Object
1241 * @example
1242 *
1243 * // options can be changed before the script is included
1244 * html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false };
1245 */
1246 var html5 = {
1247
1248 /**
1249 * An array or space separated string of node names of the elements to shiv.
1250 * @memberOf html5
1251 * @type Array|String
1252 */
1253 'elements': options.elements || 'abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output progress section summary template time video',
1254
1255 /**
1256 * current version of html5shiv
1257 */
1258 'version': version,
1259
1260 /**
1261 * A flag to indicate that the HTML5 style sheet should be inserted.
1262 * @memberOf html5
1263 * @type Boolean
1264 */
1265 'shivCSS': (options.shivCSS !== false),
1266
1267 /**
1268 * Is equal to true if a browser supports creating unknown/HTML5 elements
1269 * @memberOf html5
1270 * @type boolean
1271 */
1272 'supportsUnknownElements': supportsUnknownElements,
1273
1274 /**
1275 * A flag to indicate that the document's `createElement` and `createDocumentFragment`
1276 * methods should be overwritten.
1277 * @memberOf html5
1278 * @type Boolean
1279 */
1280 'shivMethods': (options.shivMethods !== false),
1281
1282 /**
1283 * A string to describe the type of `html5` object ("default" or "default print").
1284 * @memberOf html5
1285 * @type String
1286 */
1287 'type': 'default',
1288
1289 // shivs the document according to the specified `html5` object options
1290 'shivDocument': shivDocument,
1291
1292 //creates a shived element
1293 createElement: createElement,
1294
1295 //creates a shived documentFragment
1296 createDocumentFragment: createDocumentFragment
1297 };
1298
1299 /*--------------------------------------------------------------------------*/
1300
1301 // expose html5
1302 window.html5 = html5;
1303
1304 // shiv the document
1305 shivDocument(document);
1306
1307 }(this, document));
1308 /*>>shiv*/
1309
1310 // Assign private properties to the return object with prefix
1311 Modernizr._version = version;
1312
1313 // expose these for the plugin API. Look in the source for how to join() them against your input
1314 /*>>prefixes*/
1315 Modernizr._prefixes = prefixes;
1316 /*>>prefixes*/
1317 /*>>domprefixes*/
1318 Modernizr._domPrefixes = domPrefixes;
1319 Modernizr._cssomPrefixes = cssomPrefixes;
1320 /*>>domprefixes*/
1321
1322 /*>>mq*/
1323 // Modernizr.mq tests a given media query, live against the current state of the window
1324 // A few important notes:
1325 // * If a browser does not support media queries at all (eg. oldIE) the mq() will always return false
1326 // * A max-width or orientation query will be evaluated against the current state, which may change later.
1327 // * You must specify values. Eg. If you are testing support for the min-width media query use:
1328 // Modernizr.mq('(min-width:0)')
1329 // usage:
1330 // Modernizr.mq('only screen and (max-width:768)')
1331 Modernizr.mq = testMediaQuery;
1332 /*>>mq*/
1333
1334 /*>>hasevent*/
1335 // Modernizr.hasEvent() detects support for a given event, with an optional element to test on
1336 // Modernizr.hasEvent('gesturestart', elem)
1337 Modernizr.hasEvent = isEventSupported;
1338 /*>>hasevent*/
1339
1340 /*>>testprop*/
1341 // Modernizr.testProp() investigates whether a given style property is recognized
1342 // Note that the property names must be provided in the camelCase variant.
1343 // Modernizr.testProp('pointerEvents')
1344 Modernizr.testProp = function(prop){
1345 return testProps([prop]);
1346 };
1347 /*>>testprop*/
1348
1349 /*>>testallprops*/
1350 // Modernizr.testAllProps() investigates whether a given style property,
1351 // or any of its vendor-prefixed variants, is recognized
1352 // Note that the property names must be provided in the camelCase variant.
1353 // Modernizr.testAllProps('boxSizing')
1354 Modernizr.testAllProps = testPropsAll;
1355 /*>>testallprops*/
1356
1357
1358 /*>>teststyles*/
1359 // Modernizr.testStyles() allows you to add custom styles to the document and test an element afterwards
1360 // Modernizr.testStyles('#modernizr { position:absolute }', function(elem, rule){ ... })
1361 Modernizr.testStyles = injectElementWithStyles;
1362 /*>>teststyles*/
1363
1364
1365 /*>>prefixed*/
1366 // Modernizr.prefixed() returns the prefixed or nonprefixed property name variant of your input
1367 // Modernizr.prefixed('boxSizing') // 'MozBoxSizing'
1368
1369 // Properties must be passed as dom-style camelcase, rather than `box-sizing` hypentated style.
1370 // Return values will also be the camelCase variant, if you need to translate that to hypenated style use:
1371 //
1372 // str.replace(/([A-Z])/g, function(str,m1){ return '-' + m1.toLowerCase(); }).replace(/^ms-/,'-ms-');
1373
1374 // If you're trying to ascertain which transition end event to bind to, you might do something like...
1375 //
1376 // var transEndEventNames = {
1377 // 'WebkitTransition' : 'webkitTransitionEnd',
1378 // 'MozTransition' : 'transitionend',
1379 // 'OTransition' : 'oTransitionEnd',
1380 // 'msTransition' : 'MSTransitionEnd',
1381 // 'transition' : 'transitionend'
1382 // },
1383 // transEndEventName = transEndEventNames[ Modernizr.prefixed('transition') ];
1384
1385 Modernizr.prefixed = function(prop, obj, elem){
1386 if(!obj) {
1387 return testPropsAll(prop, 'pfx');
1388 } else {
1389 // Testing DOM property e.g. Modernizr.prefixed('requestAnimationFrame', window) // 'mozRequestAnimationFrame'
1390 return testPropsAll(prop, obj, elem);
1391 }
1392 };
1393 /*>>prefixed*/
1394
1395
1396 /*>>cssclasses*/
1397 // Remove "no-js" class from <html> element, if it exists:
1398 docElement.className = docElement.className.replace(/(^|\s)no-js(\s|$)/, '$1$2') +
1399
1400 // Add the new classes to the <html> element.
1401 (enableClasses ? ' js ' + classes.join(' ') : '');
1402 /*>>cssclasses*/
1403
1404 return Modernizr;
1405
1406})(this, this.document);
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