From 29b0e86089eb3ec0d4bb5811c9b723dfcf36703c Mon Sep 17 00:00:00 2001
From: Hakim El Hattab <hakim.elhattab@gmail.com>
Date: Thu, 4 Oct 2018 14:48:01 +0200
Subject: [PATCH] remove head.min.js in favor of simple built-in script loader

---
 demo.html                                  |  1 -
 index.html                                 |  1 -
 js/reveal.js                               | 90 ++++++++++++++++------
 lib/js/head.min.js                         |  6 --
 plugin/markdown/example.html               |  1 -
 test/assets/external-script-a.js           |  1 +
 test/assets/external-script-b.js           |  1 +
 test/assets/external-script-c.js           |  1 +
 test/assets/external-script-d.js           |  1 +
 test/examples/embedded-media.html          |  1 -
 test/examples/math.html                    |  1 -
 test/examples/slide-backgrounds.html       |  1 -
 test/examples/slide-transitions.html       |  1 -
 test/test-async-dependencies.html          | 74 ++++++++++++++++++
 test/test-dependencies.html                | 54 +++++++++++++
 test/test-markdown-element-attributes.html |  1 -
 test/test-markdown-external.html           |  1 -
 test/test-markdown-options.html            |  1 -
 test/test-markdown-slide-attributes.html   |  1 -
 test/test-markdown.html                    |  1 -
 test/test-pdf.html                         |  1 -
 test/test.html                             |  1 -
 22 files changed, 200 insertions(+), 42 deletions(-)
 delete mode 100644 lib/js/head.min.js
 create mode 100644 test/assets/external-script-a.js
 create mode 100644 test/assets/external-script-b.js
 create mode 100644 test/assets/external-script-c.js
 create mode 100644 test/assets/external-script-d.js
 create mode 100644 test/test-async-dependencies.html
 create mode 100644 test/test-dependencies.html

diff --git a/demo.html b/demo.html
index 8aa4aba9..04b47d29 100644
--- a/demo.html
+++ b/demo.html
@@ -384,7 +384,6 @@ Reveal.addEventListener( 'customevent', function() {
 
 		</div>
 
-		<script src="lib/js/head.min.js"></script>
 		<script src="js/reveal.js"></script>
 
 		<script>
diff --git a/index.html b/index.html
index 98accc3a..d9b80e4c 100644
--- a/index.html
+++ b/index.html
@@ -29,7 +29,6 @@
 			</div>
 		</div>
 
-		<script src="lib/js/head.min.js"></script>
 		<script src="js/reveal.js"></script>
 
 		<script>
diff --git a/js/reveal.js b/js/reveal.js
index ac3135da..ca2a9a0b 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -436,41 +436,28 @@
 			scriptsToPreload = 0;
 
 		// Called once synchronous scripts finish loading
-		function proceed() {
+		function afterSynchronousScriptsLoaded() {
+			// Load asynchronous scripts
 			if( scriptsAsync.length ) {
-				// Load asynchronous scripts
-				head.js.apply( null, scriptsAsync );
+				scriptsAsync.forEach( function( s ) {
+					loadScript( s.src, s.callback );
+				} );
 			}
 
 			start();
 		}
 
-		function loadScript( s ) {
-			head.ready( s.src.match( /([\w\d_\-]*)\.?js(\?[\w\d.=&]*)?$|[^\\\/]*$/i )[0], function() {
-				// Extension may contain callback functions
-				if( typeof s.callback === 'function' ) {
-					s.callback.apply( this );
-				}
-
-				if( --scriptsToPreload === 0 ) {
-					proceed();
-				}
-			});
-		}
-
 		for( var i = 0, len = config.dependencies.length; i < len; i++ ) {
 			var s = config.dependencies[i];
 
 			// Load if there's no condition or the condition is truthy
 			if( !s.condition || s.condition() ) {
 				if( s.async ) {
-					scriptsAsync.push( s.src );
+					scriptsAsync.push( s );
 				}
 				else {
-					scripts.push( s.src );
+					scripts.push( s );
 				}
-
-				loadScript( s );
 			}
 		}
 
@@ -478,14 +465,73 @@
 			scriptsToPreload = scripts.length;
 
 			// Load synchronous scripts
-			head.js.apply( null, scripts );
+			scripts.forEach( function( s ) {
+				loadScript( s.src, function() {
+
+					if( typeof s.callback === 'function' ) s.callback();
+
+					if( --scriptsToPreload === 0 ) {
+
+						afterSynchronousScriptsLoaded();
+
+					}
+
+				} );
+			} );
 		}
 		else {
-			proceed();
+			afterSynchronousScriptsLoaded();
 		}
 
 	}
 
+	/**
+	 * Loads a JavaScript file from the given URL and executes it.
+	 *
+	 * @param {string} url Address of the .js file to load
+	 * @param {function} callback Method to invoke when the script
+	 * has loaded and executed
+	 */
+	function loadScript( url, callback ) {
+
+		var script = document.createElement( 'script' );
+		script.type = 'text/javascript';
+		script.async = false;
+		script.defer = false;
+		script.src = url;
+
+		if( callback ) {
+
+			// Success callback
+			script.onload = script.onreadystatechange = function( event ) {
+				if( event.type === "load" || (/loaded|complete/.test( script.readyState ) ) ) {
+
+					// Kill event listeners
+					script.onload = script.onreadystatechange = script.onerror = null;
+
+					callback();
+
+				}
+			};
+
+			// Error callback
+			script.onerror = function( err ) {
+
+				// Kill event listeners
+				script.onload = script.onreadystatechange = script.onerror = null;
+
+				callback( new Error( 'Failed loading script: ' + script.src + '\n' + err) );
+
+			};
+
+		}
+
+		// Append the script at the end of <head>
+		var head = document.querySelector( 'head' );
+		head.insertBefore( script, head.lastChild );
+
+	}
+
 	/**
 	 * Starts up reveal.js by binding input events and navigating
 	 * to the current URL deeplink if there is one.
diff --git a/lib/js/head.min.js b/lib/js/head.min.js
deleted file mode 100644
index 15271671..00000000
--- a/lib/js/head.min.js
+++ /dev/null
@@ -1,6 +0,0 @@
-/*! head.core - v1.0.2 */
-(function(n,t){"use strict";function r(n){a[a.length]=n}function k(n){var t=new RegExp(" ?\\b"+n+"\\b");c.className=c.className.replace(t,"")}function p(n,t){for(var i=0,r=n.length;i<r;i++)t.call(n,n[i],i)}function tt(){var t,e,f,o;c.className=c.className.replace(/ (w-|eq-|gt-|gte-|lt-|lte-|portrait|no-portrait|landscape|no-landscape)\d+/g,"");t=n.innerWidth||c.clientWidth;e=n.outerWidth||n.screen.width;u.screen.innerWidth=t;u.screen.outerWidth=e;r("w-"+t);p(i.screens,function(n){t>n?(i.screensCss.gt&&r("gt-"+n),i.screensCss.gte&&r("gte-"+n)):t<n?(i.screensCss.lt&&r("lt-"+n),i.screensCss.lte&&r("lte-"+n)):t===n&&(i.screensCss.lte&&r("lte-"+n),i.screensCss.eq&&r("e-q"+n),i.screensCss.gte&&r("gte-"+n))});f=n.innerHeight||c.clientHeight;o=n.outerHeight||n.screen.height;u.screen.innerHeight=f;u.screen.outerHeight=o;u.feature("portrait",f>t);u.feature("landscape",f<t)}function it(){n.clearTimeout(b);b=n.setTimeout(tt,50)}var y=n.document,rt=n.navigator,ut=n.location,c=y.documentElement,a=[],i={screens:[240,320,480,640,768,800,1024,1280,1440,1680,1920],screensCss:{gt:!0,gte:!1,lt:!0,lte:!1,eq:!1},browsers:[{ie:{min:6,max:11}}],browserCss:{gt:!0,gte:!1,lt:!0,lte:!1,eq:!0},html5:!0,page:"-page",section:"-section",head:"head"},v,u,s,w,o,h,l,d,f,g,nt,e,b;if(n.head_conf)for(v in n.head_conf)n.head_conf[v]!==t&&(i[v]=n.head_conf[v]);u=n[i.head]=function(){u.ready.apply(null,arguments)};u.feature=function(n,t,i){return n?(Object.prototype.toString.call(t)==="[object Function]"&&(t=t.call()),r((t?"":"no-")+n),u[n]=!!t,i||(k("no-"+n),k(n),u.feature()),u):(c.className+=" "+a.join(" "),a=[],u)};u.feature("js",!0);s=rt.userAgent.toLowerCase();w=/mobile|android|kindle|silk|midp|phone|(windows .+arm|touch)/.test(s);u.feature("mobile",w,!0);u.feature("desktop",!w,!0);s=/(chrome|firefox)[ \/]([\w.]+)/.exec(s)||/(iphone|ipad|ipod)(?:.*version)?[ \/]([\w.]+)/.exec(s)||/(android)(?:.*version)?[ \/]([\w.]+)/.exec(s)||/(webkit|opera)(?:.*version)?[ \/]([\w.]+)/.exec(s)||/(msie) ([\w.]+)/.exec(s)||/(trident).+rv:(\w.)+/.exec(s)||[];o=s[1];h=parseFloat(s[2]);switch(o){case"msie":case"trident":o="ie";h=y.documentMode||h;break;case"firefox":o="ff";break;case"ipod":case"ipad":case"iphone":o="ios";break;case"webkit":o="safari"}for(u.browser={name:o,version:h},u.browser[o]=!0,l=0,d=i.browsers.length;l<d;l++)for(f in i.browsers[l])if(o===f)for(r(f),g=i.browsers[l][f].min,nt=i.browsers[l][f].max,e=g;e<=nt;e++)h>e?(i.browserCss.gt&&r("gt-"+f+e),i.browserCss.gte&&r("gte-"+f+e)):h<e?(i.browserCss.lt&&r("lt-"+f+e),i.browserCss.lte&&r("lte-"+f+e)):h===e&&(i.browserCss.lte&&r("lte-"+f+e),i.browserCss.eq&&r("eq-"+f+e),i.browserCss.gte&&r("gte-"+f+e));else r("no-"+f);r(o);r(o+parseInt(h,10));i.html5&&o==="ie"&&h<9&&p("abbr|article|aside|audio|canvas|details|figcaption|figure|footer|header|hgroup|main|mark|meter|nav|output|progress|section|summary|time|video".split("|"),function(n){y.createElement(n)});p(ut.pathname.split("/"),function(n,u){if(this.length>2&&this[u+1]!==t)u&&r(this.slice(u,u+1).join("-").toLowerCase()+i.section);else{var f=n||"index",e=f.indexOf(".");e>0&&(f=f.substring(0,e));c.id=f.toLowerCase()+i.page;u||r("root"+i.section)}});u.screen={height:n.screen.height,width:n.screen.width};tt();b=0;n.addEventListener?n.addEventListener("resize",it,!1):n.attachEvent("onresize",it)})(window);
-/*! head.css3 - v1.0.0 */
-(function(n,t){"use strict";function a(n){for(var r in n)if(i[n[r]]!==t)return!0;return!1}function r(n){var t=n.charAt(0).toUpperCase()+n.substr(1),i=(n+" "+c.join(t+" ")+t).split(" ");return!!a(i)}var h=n.document,o=h.createElement("i"),i=o.style,s=" -o- -moz- -ms- -webkit- -khtml- ".split(" "),c="Webkit Moz O ms Khtml".split(" "),l=n.head_conf&&n.head_conf.head||"head",u=n[l],f={gradient:function(){var n="background-image:";return i.cssText=(n+s.join("gradient(linear,left top,right bottom,from(#9f9),to(#fff));"+n)+s.join("linear-gradient(left top,#eee,#fff);"+n)).slice(0,-n.length),!!i.backgroundImage},rgba:function(){return i.cssText="background-color:rgba(0,0,0,0.5)",!!i.backgroundColor},opacity:function(){return o.style.opacity===""},textshadow:function(){return i.textShadow===""},multiplebgs:function(){i.cssText="background:url(https://),url(https://),red url(https://)";var n=(i.background||"").match(/url/g);return Object.prototype.toString.call(n)==="[object Array]"&&n.length===3},boxshadow:function(){return r("boxShadow")},borderimage:function(){return r("borderImage")},borderradius:function(){return r("borderRadius")},cssreflections:function(){return r("boxReflect")},csstransforms:function(){return r("transform")},csstransitions:function(){return r("transition")},touch:function(){return"ontouchstart"in n},retina:function(){return n.devicePixelRatio>1},fontface:function(){var t=u.browser.name,n=u.browser.version;switch(t){case"ie":return n>=9;case"chrome":return n>=13;case"ff":return n>=6;case"ios":return n>=5;case"android":return!1;case"webkit":return n>=5.1;case"opera":return n>=10;default:return!1}}};for(var e in f)f[e]&&u.feature(e,f[e].call(),!0);u.feature()})(window);
-/*! head.load - v1.0.3 */
-(function(n,t){"use strict";function w(){}function u(n,t){if(n){typeof n=="object"&&(n=[].slice.call(n));for(var i=0,r=n.length;i<r;i++)t.call(n,n[i],i)}}function it(n,i){var r=Object.prototype.toString.call(i).slice(8,-1);return i!==t&&i!==null&&r===n}function s(n){return it("Function",n)}function a(n){return it("Array",n)}function et(n){var i=n.split("/"),t=i[i.length-1],r=t.indexOf("?");return r!==-1?t.substring(0,r):t}function f(n){(n=n||w,n._done)||(n(),n._done=1)}function ot(n,t,r,u){var f=typeof n=="object"?n:{test:n,success:!t?!1:a(t)?t:[t],failure:!r?!1:a(r)?r:[r],callback:u||w},e=!!f.test;return e&&!!f.success?(f.success.push(f.callback),i.load.apply(null,f.success)):e||!f.failure?u():(f.failure.push(f.callback),i.load.apply(null,f.failure)),i}function v(n){var t={},i,r;if(typeof n=="object")for(i in n)!n[i]||(t={name:i,url:n[i]});else t={name:et(n),url:n};return(r=c[t.name],r&&r.url===t.url)?r:(c[t.name]=t,t)}function y(n){n=n||c;for(var t in n)if(n.hasOwnProperty(t)&&n[t].state!==l)return!1;return!0}function st(n){n.state=ft;u(n.onpreload,function(n){n.call()})}function ht(n){n.state===t&&(n.state=nt,n.onpreload=[],rt({url:n.url,type:"cache"},function(){st(n)}))}function ct(){var n=arguments,t=n[n.length-1],r=[].slice.call(n,1),f=r[0];return(s(t)||(t=null),a(n[0]))?(n[0].push(t),i.load.apply(null,n[0]),i):(f?(u(r,function(n){s(n)||!n||ht(v(n))}),b(v(n[0]),s(f)?f:function(){i.load.apply(null,r)})):b(v(n[0])),i)}function lt(){var n=arguments,t=n[n.length-1],r={};return(s(t)||(t=null),a(n[0]))?(n[0].push(t),i.load.apply(null,n[0]),i):(u(n,function(n){n!==t&&(n=v(n),r[n.name]=n)}),u(n,function(n){n!==t&&(n=v(n),b(n,function(){y(r)&&f(t)}))}),i)}function b(n,t){if(t=t||w,n.state===l){t();return}if(n.state===tt){i.ready(n.name,t);return}if(n.state===nt){n.onpreload.push(function(){b(n,t)});return}n.state=tt;rt(n,function(){n.state=l;t();u(h[n.name],function(n){f(n)});o&&y()&&u(h.ALL,function(n){f(n)})})}function at(n){n=n||"";var t=n.split("?")[0].split(".");return t[t.length-1].toLowerCase()}function rt(t,i){function e(t){t=t||n.event;u.onload=u.onreadystatechange=u.onerror=null;i()}function o(f){f=f||n.event;(f.type==="load"||/loaded|complete/.test(u.readyState)&&(!r.documentMode||r.documentMode<9))&&(n.clearTimeout(t.errorTimeout),n.clearTimeout(t.cssTimeout),u.onload=u.onreadystatechange=u.onerror=null,i())}function s(){if(t.state!==l&&t.cssRetries<=20){for(var i=0,f=r.styleSheets.length;i<f;i++)if(r.styleSheets[i].href===u.href){o({type:"load"});return}t.cssRetries++;t.cssTimeout=n.setTimeout(s,250)}}var u,h,f;i=i||w;h=at(t.url);h==="css"?(u=r.createElement("link"),u.type="text/"+(t.type||"css"),u.rel="stylesheet",u.href=t.url,t.cssRetries=0,t.cssTimeout=n.setTimeout(s,500)):(u=r.createElement("script"),u.type="text/"+(t.type||"javascript"),u.src=t.url);u.onload=u.onreadystatechange=o;u.onerror=e;u.async=!1;u.defer=!1;t.errorTimeout=n.setTimeout(function(){e({type:"timeout"})},7e3);f=r.head||r.getElementsByTagName("head")[0];f.insertBefore(u,f.lastChild)}function vt(){for(var t,u=r.getElementsByTagName("script"),n=0,f=u.length;n<f;n++)if(t=u[n].getAttribute("data-headjs-load"),!!t){i.load(t);return}}function yt(n,t){var v,p,e;return n===r?(o?f(t):d.push(t),i):(s(n)&&(t=n,n="ALL"),a(n))?(v={},u(n,function(n){v[n]=c[n];i.ready(n,function(){y(v)&&f(t)})}),i):typeof n!="string"||!s(t)?i:(p=c[n],p&&p.state===l||n==="ALL"&&y()&&o)?(f(t),i):(e=h[n],e?e.push(t):e=h[n]=[t],i)}function e(){if(!r.body){n.clearTimeout(i.readyTimeout);i.readyTimeout=n.setTimeout(e,50);return}o||(o=!0,vt(),u(d,function(n){f(n)}))}function k(){r.addEventListener?(r.removeEventListener("DOMContentLoaded",k,!1),e()):r.readyState==="complete"&&(r.detachEvent("onreadystatechange",k),e())}var r=n.document,d=[],h={},c={},ut="async"in r.createElement("script")||"MozAppearance"in r.documentElement.style||n.opera,o,g=n.head_conf&&n.head_conf.head||"head",i=n[g]=n[g]||function(){i.ready.apply(null,arguments)},nt=1,ft=2,tt=3,l=4,p;if(r.readyState==="complete")e();else if(r.addEventListener)r.addEventListener("DOMContentLoaded",k,!1),n.addEventListener("load",e,!1);else{r.attachEvent("onreadystatechange",k);n.attachEvent("onload",e);p=!1;try{p=!n.frameElement&&r.documentElement}catch(wt){}p&&p.doScroll&&function pt(){if(!o){try{p.doScroll("left")}catch(t){n.clearTimeout(i.readyTimeout);i.readyTimeout=n.setTimeout(pt,50);return}e()}}()}i.load=i.js=ut?lt:ct;i.test=ot;i.ready=yt;i.ready(r,function(){y()&&u(h.ALL,function(n){f(n)});i.feature&&i.feature("domloaded",!0)})})(window);
\ No newline at end of file
diff --git a/plugin/markdown/example.html b/plugin/markdown/example.html
index 300e39ea..f34417bc 100644
--- a/plugin/markdown/example.html
+++ b/plugin/markdown/example.html
@@ -109,7 +109,6 @@
             </div>
 		</div>
 
-		<script src="../../lib/js/head.min.js"></script>
 		<script src="../../js/reveal.js"></script>
 
 		<script>
diff --git a/test/assets/external-script-a.js b/test/assets/external-script-a.js
new file mode 100644
index 00000000..cbc8da11
--- /dev/null
+++ b/test/assets/external-script-a.js
@@ -0,0 +1 @@
+window.externalScriptSequence += 'A';
\ No newline at end of file
diff --git a/test/assets/external-script-b.js b/test/assets/external-script-b.js
new file mode 100644
index 00000000..e5bca5ad
--- /dev/null
+++ b/test/assets/external-script-b.js
@@ -0,0 +1 @@
+window.externalScriptSequence += 'B';
\ No newline at end of file
diff --git a/test/assets/external-script-c.js b/test/assets/external-script-c.js
new file mode 100644
index 00000000..7d4ccf6f
--- /dev/null
+++ b/test/assets/external-script-c.js
@@ -0,0 +1 @@
+window.externalScriptSequence += 'C';
\ No newline at end of file
diff --git a/test/assets/external-script-d.js b/test/assets/external-script-d.js
new file mode 100644
index 00000000..1c5925bf
--- /dev/null
+++ b/test/assets/external-script-d.js
@@ -0,0 +1 @@
+window.externalScriptSequence += 'D';
\ No newline at end of file
diff --git a/test/examples/embedded-media.html b/test/examples/embedded-media.html
index bbad4be3..312c48c7 100644
--- a/test/examples/embedded-media.html
+++ b/test/examples/embedded-media.html
@@ -34,7 +34,6 @@
 
 		</div>
 
-		<script src="../../lib/js/head.min.js"></script>
 		<script src="../../js/reveal.js"></script>
 
 		<script>
diff --git a/test/examples/math.html b/test/examples/math.html
index d35e8277..17a1a7e1 100644
--- a/test/examples/math.html
+++ b/test/examples/math.html
@@ -159,7 +159,6 @@
 
 		</div>
 
-		<script src="../../lib/js/head.min.js"></script>
 		<script src="../../js/reveal.js"></script>
 
 		<script>
diff --git a/test/examples/slide-backgrounds.html b/test/examples/slide-backgrounds.html
index 316c92ac..e08d260c 100644
--- a/test/examples/slide-backgrounds.html
+++ b/test/examples/slide-backgrounds.html
@@ -122,7 +122,6 @@
 
 		</div>
 
-		<script src="../../lib/js/head.min.js"></script>
 		<script src="../../js/reveal.js"></script>
 
 		<script>
diff --git a/test/examples/slide-transitions.html b/test/examples/slide-transitions.html
index 88119dc7..b7520ab0 100644
--- a/test/examples/slide-transitions.html
+++ b/test/examples/slide-transitions.html
@@ -81,7 +81,6 @@
 
 		</div>
 
-		<script src="../../lib/js/head.min.js"></script>
 		<script src="../../js/reveal.js"></script>
 
 		<script>
diff --git a/test/test-async-dependencies.html b/test/test-async-dependencies.html
new file mode 100644
index 00000000..d08db281
--- /dev/null
+++ b/test/test-async-dependencies.html
@@ -0,0 +1,74 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Test Async Dependencies</title>
+
+		<link rel="stylesheet" href="../css/reveal.css">
+		<link rel="stylesheet" href="qunit-2.5.0.css">
+	</head>
+
+	<body style="overflow: auto;">
+
+		<div id="qunit"></div>
+		<div id="qunit-fixture"></div>
+
+		<div class="reveal" style="display: none;">
+
+			<div class="slides">
+
+				<section>Slide content</section>
+
+			</div>
+
+		</div>
+
+		<script src="../js/reveal.js"></script>
+		<script src="qunit-2.5.0.js"></script>
+
+		<script>
+			window.externalScriptSequence = '';
+
+			QUnit.module( 'Async Dependencies' );
+
+			var scriptCount = 0;
+
+			QUnit.test( 'Async scripts are loaded', function( assert ) {
+				assert.expect( 5 );
+				var done = assert.async( 5 );
+
+				function callback( event ) {
+					if( window.externalScriptSequence.length === 1 ) {
+						assert.ok( window.externalScriptSequence === 'A', 'first callback was sync script' );
+					}
+					else {
+						assert.ok( true, 'async script loaded' );
+					}
+
+					if( window.externalScriptSequence.length === 4 ) {
+						assert.ok( 	window.externalScriptSequence.indexOf( 'A' ) !== -1 &&
+									window.externalScriptSequence.indexOf( 'B' ) !== -1 &&
+									window.externalScriptSequence.indexOf( 'C' ) !== -1 &&
+									window.externalScriptSequence.indexOf( 'D' ) !== -1, 'four unique scripts were loaded' );
+					}
+
+					done();
+					scriptCount ++;
+				}
+
+				Reveal.initialize({
+					dependencies: [
+						{ src: 'assets/external-script-a.js', async: false, callback: callback },
+						{ src: 'assets/external-script-b.js', async: true, callback: callback },
+						{ src: 'assets/external-script-c.js', async: true, callback: callback },
+						{ src: 'assets/external-script-d.js', async: true, callback: callback }
+					]
+				});
+			});
+
+		</script>
+
+	</body>
+</html>
diff --git a/test/test-dependencies.html b/test/test-dependencies.html
new file mode 100644
index 00000000..49aaf60e
--- /dev/null
+++ b/test/test-dependencies.html
@@ -0,0 +1,54 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - Test Dependencies</title>
+
+		<link rel="stylesheet" href="../css/reveal.css">
+		<link rel="stylesheet" href="qunit-2.5.0.css">
+	</head>
+
+	<body style="overflow: auto;">
+
+		<div id="qunit"></div>
+		<div id="qunit-fixture"></div>
+
+		<div class="reveal" style="display: none;">
+
+			<div class="slides">
+
+				<section>Slide content</section>
+
+			</div>
+
+		</div>
+
+		<script src="../js/reveal.js"></script>
+		<script src="qunit-2.5.0.js"></script>
+
+		<script>
+			window.externalScriptSequence = '';
+
+			Reveal.addEventListener( 'ready', function() {
+
+				QUnit.module( 'Dependencies' );
+
+				QUnit.test( 'Load synchronous scripts', function( assert ) {
+					assert.strictEqual( window.externalScriptSequence, 'ABC', 'Loaded and executed in order' );
+				});
+
+			} );
+
+			Reveal.initialize({
+				dependencies: [
+					{ src: 'assets/external-script-a.js' },
+					{ src: 'assets/external-script-b.js' },
+					{ src: 'assets/external-script-c.js' }
+				]
+			});
+		</script>
+
+	</body>
+</html>
diff --git a/test/test-markdown-element-attributes.html b/test/test-markdown-element-attributes.html
index 4a092724..409d0687 100644
--- a/test/test-markdown-element-attributes.html
+++ b/test/test-markdown-element-attributes.html
@@ -122,7 +122,6 @@
 
 		</div>
 
-		<script src="../lib/js/head.min.js"></script>
 		<script src="../js/reveal.js"></script>
 		<script src="../plugin/markdown/marked.js"></script>
 		<script src="../plugin/markdown/markdown.js"></script>
diff --git a/test/test-markdown-external.html b/test/test-markdown-external.html
index d4912b0a..76c6ae6c 100644
--- a/test/test-markdown-external.html
+++ b/test/test-markdown-external.html
@@ -23,7 +23,6 @@
 
 		</div>
 
-		<script src="../lib/js/head.min.js"></script>
 		<script src="../js/reveal.js"></script>
 		<script src="../plugin/highlight/highlight.js"></script>
 		<script src="../plugin/markdown/marked.js"></script>
diff --git a/test/test-markdown-options.html b/test/test-markdown-options.html
index 598243a6..5391a195 100644
--- a/test/test-markdown-options.html
+++ b/test/test-markdown-options.html
@@ -31,7 +31,6 @@
 
 		</div>
 
-		<script src="../lib/js/head.min.js"></script>
 		<script src="../js/reveal.js"></script>
 		<script src="qunit-2.5.0.js"></script>
 
diff --git a/test/test-markdown-slide-attributes.html b/test/test-markdown-slide-attributes.html
index e90a9cf9..ba9e7100 100644
--- a/test/test-markdown-slide-attributes.html
+++ b/test/test-markdown-slide-attributes.html
@@ -116,7 +116,6 @@
 
 		</div>
 
-		<script src="../lib/js/head.min.js"></script>
 		<script src="../js/reveal.js"></script>
 		<script src="../plugin/markdown/marked.js"></script>
 		<script src="../plugin/markdown/markdown.js"></script>
diff --git a/test/test-markdown.html b/test/test-markdown.html
index 00f7e7a9..e1e5926e 100644
--- a/test/test-markdown.html
+++ b/test/test-markdown.html
@@ -40,7 +40,6 @@
 
 		</div>
 
-		<script src="../lib/js/head.min.js"></script>
 		<script src="../js/reveal.js"></script>
 		<script src="../plugin/markdown/marked.js"></script>
 		<script src="../plugin/markdown/markdown.js"></script>
diff --git a/test/test-pdf.html b/test/test-pdf.html
index 5ab8578c..1455fb90 100644
--- a/test/test-pdf.html
+++ b/test/test-pdf.html
@@ -73,7 +73,6 @@
 
 		</div>
 
-		<script src="../lib/js/head.min.js"></script>
 		<script src="../js/reveal.js"></script>
 		<script src="qunit-2.5.0.js"></script>
 
diff --git a/test/test.html b/test/test.html
index f0a50504..67932b7b 100644
--- a/test/test.html
+++ b/test/test.html
@@ -76,7 +76,6 @@
 
 		</div>
 
-		<script src="../lib/js/head.min.js"></script>
 		<script src="../js/reveal.js"></script>
 		<script src="qunit-2.5.0.js"></script>