Index: frontend/node_modules/jsesc/bin/jsesc
===================================================================
--- frontend/node_modules/jsesc/bin/jsesc	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/jsesc/bin/jsesc	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,148 @@
+#!/usr/bin/env node
+(function() {
+
+	var fs = require('fs');
+	var stringEscape = require('../jsesc.js');
+	var strings = process.argv.splice(2);
+	var stdin = process.stdin;
+	var data;
+	var timeout;
+	var isObject = false;
+	var options = {};
+	var log = console.log;
+
+	var main = function() {
+		var option = strings[0];
+
+		if (/^(?:-h|--help|undefined)$/.test(option)) {
+			log(
+				'jsesc v%s - https://mths.be/jsesc',
+				stringEscape.version
+			);
+			log([
+				'\nUsage:\n',
+				'\tjsesc [string]',
+				'\tjsesc [-s | --single-quotes] [string]',
+				'\tjsesc [-d | --double-quotes] [string]',
+				'\tjsesc [-w | --wrap] [string]',
+				'\tjsesc [-e | --escape-everything] [string]',
+				'\tjsesc [-t | --escape-etago] [string]',
+				'\tjsesc [-6 | --es6] [string]',
+				'\tjsesc [-l | --lowercase-hex] [string]',
+				'\tjsesc [-j | --json] [string]',
+				'\tjsesc [-o | --object] [stringified_object]', // `JSON.parse()` the argument
+				'\tjsesc [-p | --pretty] [string]', // `compact: false`
+				'\tjsesc [-v | --version]',
+				'\tjsesc [-h | --help]',
+				'\nExamples:\n',
+				'\tjsesc \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\'',
+				'\tjsesc --json \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\'',
+				'\tjsesc --json --escape-everything \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\'',
+				'\tjsesc --double-quotes --wrap \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\'',
+				'\techo \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\' | jsesc'
+			].join('\n'));
+			return process.exit(1);
+		}
+
+		if (/^(?:-v|--version)$/.test(option)) {
+			log('v%s', stringEscape.version);
+			return process.exit(1);
+		}
+
+		strings.forEach(function(string) {
+			// Process options
+			if (/^(?:-s|--single-quotes)$/.test(string)) {
+				options.quotes = 'single';
+				return;
+			}
+			if (/^(?:-d|--double-quotes)$/.test(string)) {
+				options.quotes = 'double';
+				return;
+			}
+			if (/^(?:-w|--wrap)$/.test(string)) {
+				options.wrap = true;
+				return;
+			}
+			if (/^(?:-e|--escape-everything)$/.test(string)) {
+				options.escapeEverything = true;
+				return;
+			}
+			if (/^(?:-t|--escape-etago)$/.test(string)) {
+				options.escapeEtago = true;
+				return;
+			}
+			if (/^(?:-6|--es6)$/.test(string)) {
+				options.es6 = true;
+				return;
+			}
+			if (/^(?:-l|--lowercase-hex)$/.test(string)) {
+				options.lowercaseHex = true;
+				return;
+			}
+			if (/^(?:-j|--json)$/.test(string)) {
+				options.json = true;
+				return;
+			}
+			if (/^(?:-o|--object)$/.test(string)) {
+				isObject = true;
+				return;
+			}
+			if (/^(?:-p|--pretty)$/.test(string)) {
+				isObject = true;
+				options.compact = false;
+				return;
+			}
+
+			// Process string(s)
+			var result;
+			try {
+				if (isObject) {
+					string = JSON.parse(string);
+				}
+				result = stringEscape(string, options);
+				log(result);
+			} catch(error) {
+				log(error.message + '\n');
+				log('Error: failed to escape.');
+				log('If you think this is a bug in jsesc, please report it:');
+				log('https://github.com/mathiasbynens/jsesc/issues/new');
+				log(
+					'\nStack trace using jsesc@%s:\n',
+					stringEscape.version
+				);
+				log(error.stack);
+				return process.exit(1);
+			}
+		});
+		// Return with exit status 0 outside of the `forEach` loop, in case
+		// multiple strings were passed in.
+		return process.exit(0);
+
+	};
+
+	if (stdin.isTTY) {
+		// handle shell arguments
+		main();
+	} else {
+		// Either the script is called from within a non-TTY context,
+		// or `stdin` content is being piped in.
+		if (!process.stdout.isTTY) { // called from a non-TTY context
+			timeout = setTimeout(function() {
+				// if no piped data arrived after a while, handle shell arguments
+				main();
+			}, 250);
+		}
+
+		data = '';
+		stdin.on('data', function(chunk) {
+			clearTimeout(timeout);
+			data += chunk;
+		});
+		stdin.on('end', function() {
+			strings.push(data.trim());
+			main();
+		});
+		stdin.resume();
+	}
+
+}());