Index: imaps-frontend/node_modules/es-iterator-helpers/test/Iterator.concat.js
===================================================================
--- imaps-frontend/node_modules/es-iterator-helpers/test/Iterator.concat.js	(revision 79a03170cdde4e801d12257ee86723774970427b)
+++ imaps-frontend/node_modules/es-iterator-helpers/test/Iterator.concat.js	(revision 79a03170cdde4e801d12257ee86723774970427b)
@@ -0,0 +1,127 @@
+'use strict';
+
+var defineProperties = require('define-properties');
+var test = require('tape');
+var callBind = require('call-bind');
+var functionsHaveNames = require('functions-have-names')();
+var forEach = require('for-each');
+var debug = require('object-inspect');
+var v = require('es-value-fixtures');
+var hasSymbols = require('has-symbols/shams')();
+var mockProperty = require('mock-property');
+
+var index = require('../Iterator.concat');
+var impl = require('../Iterator.concat/implementation');
+var from = require('../Iterator.from/polyfill')();
+
+var isEnumerable = Object.prototype.propertyIsEnumerable;
+
+var testIterator = require('./helpers/testIterator');
+
+module.exports = {
+	tests: function (concat, name, t) {
+		t['throws'](
+			function () { return new concat(); }, // eslint-disable-line new-cap
+			TypeError,
+			'`' + name + '` itself is not a constructor'
+		);
+		t['throws'](
+			function () { return new concat({}); }, // eslint-disable-line new-cap
+			TypeError,
+			'`' + name + '` itself is not a constructor, with an argument'
+		);
+
+		forEach(v.primitives.concat(v.objects), function (nonIterator) {
+			t['throws'](
+				function () { concat(nonIterator); },
+				TypeError,
+				debug(nonIterator) + ' is not an iterable Object'
+			);
+		});
+
+		t.test('actual iteration', { skip: !hasSymbols }, function (st) {
+			forEach(v.nonFunctions, function (nonFunction) {
+				var badIterable = {};
+				badIterable[Symbol.iterator] = nonFunction;
+				st['throws'](
+					function () { concat([], badIterable, []).next(); },
+					TypeError,
+					debug(badIterable) + ' is not a function'
+				);
+			});
+
+			forEach(v.strings, function (string) {
+				st['throws'](
+					function () { concat(string); },
+					TypeError,
+					'non-objects are not considered iterable'
+				);
+				var stringIt = concat(['a'], [string], ['c']);
+				testIterator(stringIt, ['a', string, 'c'], st, 'string iterator: ' + debug(string));
+			});
+
+			var arrayIt = concat([1, 2, 3]);
+			st.equal(typeof arrayIt.next, 'function', 'has a `next` function');
+
+			st.test('real iterators', { skip: !hasSymbols }, function (s2t) {
+				var iter = [1, 2][Symbol.iterator]();
+				testIterator(concat(iter, [3]), [1, 2, 3], s2t, 'array iterator + array yields combined results');
+
+				s2t.end();
+			});
+
+			st.test('observability in a replaced String iterator', function (s2t) {
+				var originalStringIterator = String.prototype[Symbol.iterator];
+				var observedType;
+				s2t.teardown(mockProperty(String.prototype, Symbol.iterator, {
+					get: function () {
+						'use strict'; // eslint-disable-line strict, lines-around-directive
+
+						observedType = typeof this;
+						return originalStringIterator;
+					}
+				}));
+
+				concat(from(''));
+				s2t.equal(observedType, 'string', 'string primitive -> primitive receiver in Symbol.iterator getter');
+				concat(from(Object('')));
+				s2t.equal(observedType, 'object', 'boxed string -> boxed string in Symbol.iterator getter');
+
+				s2t.end();
+			});
+
+			st.end();
+		});
+	},
+	index: function () {
+		test('Iterator.concat: index', function (t) {
+			module.exports.tests(index, 'Iterator.concat', t);
+
+			t.end();
+		});
+	},
+	implementation: function () {
+		test('Iterator.concat: implementation', function (t) {
+			module.exports.tests(impl, 'Iterator.concat', t);
+
+			t.end();
+		});
+	},
+	shimmed: function () {
+		test('Iterator.concat: shimmed', function (t) {
+			t.test('Function name', { skip: !functionsHaveNames }, function (st) {
+				st.equal(Iterator.concat.name, 'concat', 'Iterator.concat has name "concat"');
+				st.end();
+			});
+
+			t.test('enumerability', { skip: !defineProperties.supportsDescriptors }, function (et) {
+				et.equal(false, isEnumerable.call(Iterator, 'concat'), 'Iterator.concat is not enumerable');
+				et.end();
+			});
+
+			module.exports.tests(callBind(Iterator.concat, Iterator), 'Iterator.concat', t);
+
+			t.end();
+		});
+	}
+};
Index: imaps-frontend/node_modules/es-iterator-helpers/test/Iterator.from.js
===================================================================
--- imaps-frontend/node_modules/es-iterator-helpers/test/Iterator.from.js	(revision d56544918790c0c3bc50f2f0a98c99f3d2988ccf)
+++ imaps-frontend/node_modules/es-iterator-helpers/test/Iterator.from.js	(revision 79a03170cdde4e801d12257ee86723774970427b)
@@ -101,5 +101,12 @@
 			st.test('real iterators', { skip: !hasSymbols }, function (s2t) {
 				var iter = [][Symbol.iterator]();
-				s2t.equal(from(iter), iter, 'array iterator becomes itself');
+				// eslint-disable-next-line no-proto
+				var arrayIterHasIterProto = hasProto && iter.__proto__.__proto__ !== Object.prototype;
+				s2t.equal(
+					from(iter),
+					iter,
+					'array iterator becomes itself',
+					{ skip: !arrayIterHasIterProto && 'node 0.12 - 3 do not have Iterator.prototype in the proto chains' }
+				);
 
 				s2t.end();
Index: imaps-frontend/node_modules/es-iterator-helpers/test/Iterator.zip.js
===================================================================
--- imaps-frontend/node_modules/es-iterator-helpers/test/Iterator.zip.js	(revision 79a03170cdde4e801d12257ee86723774970427b)
+++ imaps-frontend/node_modules/es-iterator-helpers/test/Iterator.zip.js	(revision 79a03170cdde4e801d12257ee86723774970427b)
@@ -0,0 +1,125 @@
+'use strict';
+
+var defineProperties = require('define-properties');
+var test = require('tape');
+var callBind = require('call-bind');
+var functionsHaveNames = require('functions-have-names')();
+var forEach = require('for-each');
+var debug = require('object-inspect');
+var v = require('es-value-fixtures');
+var hasSymbols = require('has-symbols/shams')();
+var mockProperty = require('mock-property');
+
+var index = require('../Iterator.zip');
+var impl = require('../Iterator.zip/implementation');
+var from = require('../Iterator.from/polyfill')();
+
+var isEnumerable = Object.prototype.propertyIsEnumerable;
+
+var testIterator = require('./helpers/testIterator');
+
+module.exports = {
+	tests: function (zip, name, t) {
+		t['throws'](
+			function () { return new zip(); }, // eslint-disable-line new-cap
+			TypeError,
+			'`' + name + '` itself is not a constructor'
+		);
+		t['throws'](
+			function () { return new zip({}); }, // eslint-disable-line new-cap
+			TypeError,
+			'`' + name + '` itself is not a constructor, with an argument'
+		);
+
+		forEach(v.primitives.concat(v.objects), function (nonIterator) {
+			t['throws'](
+				function () { zip(nonIterator, []); },
+				TypeError,
+				debug(nonIterator) + ' is not an iterable Object'
+			);
+		});
+
+		t.test('actual iteration', { skip: !hasSymbols }, function (st) {
+			forEach(v.nonFunctions, function (nonFunction) {
+				var badIterable = {};
+				badIterable[Symbol.iterator] = nonFunction;
+				st['throws'](
+					function () { zip([[], badIterable, []]).next(); },
+					TypeError,
+					debug(badIterable) + ' is not a function'
+				);
+			});
+
+			forEach(v.strings, function (string) {
+				st['throws'](
+					function () { zip([string]); },
+					TypeError,
+					'non-objects are not considered iterable'
+				);
+			});
+
+			var arrayIt = zip([[1, 2, 3]]);
+			st.equal(typeof arrayIt.next, 'function', 'has a `next` function');
+
+			st.test('real iterators', { skip: !hasSymbols }, function (s2t) {
+				var iter = [1, 2][Symbol.iterator]();
+				testIterator(zip([iter, [3, 4]]), [[1, 3], [2, 4]], s2t, 'array iterator + array yields combined results');
+
+				s2t.end();
+			});
+
+			st.test('observability in a replaced String iterator', function (s2t) {
+				var originalStringIterator = String.prototype[Symbol.iterator];
+				var observedType;
+				s2t.teardown(mockProperty(String.prototype, Symbol.iterator, {
+					get: function () {
+						'use strict'; // eslint-disable-line strict, lines-around-directive
+
+						observedType = typeof this;
+						return originalStringIterator;
+					}
+				}));
+
+				zip([from('')]);
+				s2t.equal(observedType, 'string', 'string primitive -> primitive receiver in Symbol.iterator getter');
+				zip([from(Object(''))]);
+				s2t.equal(observedType, 'object', 'boxed string -> boxed string in Symbol.iterator getter');
+
+				s2t.end();
+			});
+
+			st.end();
+		});
+	},
+	index: function () {
+		test('Iterator.zip: index', function (t) {
+			module.exports.tests(index, 'Iterator.zip', t);
+
+			t.end();
+		});
+	},
+	implementation: function () {
+		test('Iterator.zip: implementation', function (t) {
+			module.exports.tests(impl, 'Iterator.zip', t);
+
+			t.end();
+		});
+	},
+	shimmed: function () {
+		test('Iterator.zip: shimmed', function (t) {
+			t.test('Function name', { skip: !functionsHaveNames }, function (st) {
+				st.equal(Iterator.zip.name, 'zip', 'Iterator.zip has name "zip"');
+				st.end();
+			});
+
+			t.test('enumerability', { skip: !defineProperties.supportsDescriptors }, function (et) {
+				et.equal(false, isEnumerable.call(Iterator, 'zip'), 'Iterator.zip is not enumerable');
+				et.end();
+			});
+
+			module.exports.tests(callBind(Iterator.zip, Iterator), 'Iterator.zip', t);
+
+			t.end();
+		});
+	}
+};
