diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index 91dfed8..0000000
--- a/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-.DS_Store
-node_modules
\ No newline at end of file
diff --git a/README.md b/README.md
index c834dc1..1bd2e55 100644
--- a/README.md
+++ b/README.md
@@ -282,6 +282,10 @@ $(window).on("backstretch.after", function (e, instance, index) {
 
 ## Changelog
 
+### Version 2.1.18
+
+* Bugfix: When another library imports youtube api first, YT detection misbehaves in backstretch.
+
 ### Version 2.1.17
 
 * Bugfix: Calling `.backstretch(...)` on an already backstretched element did not properly destroy the older backstretch instance. Resulted in ghost backstretches... 
diff --git a/debian/changelog b/debian/changelog
index 27460a2..a255edc 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+libjs-jquery-backstretch (2.1.17+git20190918.1.f6bf1d6-1) UNRELEASED; urgency=low
+
+  * New upstream snapshot.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Fri, 15 Apr 2022 11:19:14 -0000
+
 libjs-jquery-backstretch (2.1.17-4) unstable; urgency=medium
 
   * Team upload
diff --git a/debian/patches/gruntfile.patch b/debian/patches/gruntfile.patch
index 78ed7f9..95b28fe 100644
--- a/debian/patches/gruntfile.patch
+++ b/debian/patches/gruntfile.patch
@@ -1,5 +1,7 @@
---- a/Gruntfile.js
-+++ b/Gruntfile.js
+Index: libjs-jquery-backstretch/Gruntfile.js
+===================================================================
+--- libjs-jquery-backstretch.orig/Gruntfile.js
++++ libjs-jquery-backstretch/Gruntfile.js
 @@ -1,12 +1,9 @@
  /*global module:false*/
  module.exports = function(grunt) {
@@ -14,7 +16,7 @@
    // Project configuration.
    grunt.initConfig({
      pkg: grunt.file.readJSON('package.json'),
-@@ -60,6 +57,6 @@
+@@ -61,6 +58,6 @@ module.exports = function(grunt) {
    });
  
    // Default task.
diff --git a/jquery.backstretch.js b/jquery.backstretch.js
index 8472aa6..9e262d7 100644
--- a/jquery.backstretch.js
+++ b/jquery.backstretch.js
@@ -1228,7 +1228,7 @@
 
       setVideoElement();
 
-      if (window['YT']) {
+      if (window['YT'] && window['YT'].loaded) {
         that._initYoutube();
         $video.trigger('initsuccess');
       }
@@ -1501,16 +1501,19 @@
    * Use $(window).one('youtube_api_load', ...) to listen for API loaded event
    */
   VideoWrapper.loadYoutubeAPI = function () {
-    if (window['YT']) {
+    if (window['YT'] && window['__yt_load_event_interval__']) {
       return;
     }
-    if (!$('script[src*=www\\.youtube\\.com\\/iframe_api]').length) {
+    
+    if (!window['YT'] && !$('script[src*=www\\.youtube\\.com\\/iframe_api]').length) {
       $('<script type="text/javascript" src="https://www.youtube.com/iframe_api">').appendTo('body');
     }
-    var ytAPILoadInt = setInterval(function () {
+    
+    window['__yt_load_event_interval__'] = setInterval(function () {
       if (window['YT'] && window['YT'].loaded) {
         $(window).trigger('youtube_api_load');
-        clearTimeout(ytAPILoadInt);
+        clearTimeout(window['__yt_load_event_interval__']);
+        delete window['__yt_load_event_interval__'];
       }
     }, 50);
   };
diff --git a/jquery.backstretch.min.js b/jquery.backstretch.min.js
index 6026d45..f550981 100644
--- a/jquery.backstretch.min.js
+++ b/jquery.backstretch.min.js
@@ -1 +1 @@
-/*! Backstretch - v2.1.17 - 2018-11-26\n* Copyright (c) 2018 Scott Robbin;* Fork of improvements - by Daniel Cohen Gindi (danielgindi@gmail.com) Licensed MIT */!function(a,b,c){"use strict";function d(a){return m.hasOwnProperty(a)?a:"cover"}var e=/^.*(youtu\.be\/|youtube\.com\/v\/|youtube\.com\/embed\/|youtube\.com\/watch\?v=|youtube\.com\/watch\?.*\&v=)([^#\&\?]*).*/i;a.fn.backstretch=function(d,e){var f=arguments;0===a(b).scrollTop()&&b.scrollTo(0,0);var g;return this.each(function(b){var h=a(this),i=h.data("backstretch");if(i){if("string"==typeof f[0]&&"function"==typeof i[f[0]]){var j=i[f[0]].apply(i,Array.prototype.slice.call(f,1));return j===i&&(j=c),void(j!==c&&(g=g||[],g[b]=j))}e=a.extend(i.options,e),"object"==typeof i&&"destroy"in i&&i.destroy(!0)}if(!d||d&&0===d.length){var k=h.css("background-image");k&&"none"!==k?d=[{url:h.css("backgroundImage").replace(/url\(|\)|"|'/g,"")}]:a.error("No images were supplied for Backstretch, or element must have a CSS-defined background 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g=[],i=function(a){for(var b=0;b<g.length;b++)if(g[b].src===a.src)return g[b];return g.push(a),a},j=function(a,b,c){"function"==typeof b&&b.call(a,c)};return function b(c,d,e,f,g){if("undefined"!=typeof c){a.isArray(c)||(c=[c]),arguments.length<5&&"function"==typeof arguments[arguments.length-1]&&(g=arguments[arguments.length-1]),d="function"!=typeof d&&d?d:0,e="function"==typeof e||!e||e<0?c.length:Math.min(e,c.length),f="function"!=typeof f&&f?f:1,d>=c.length&&(d=0,e=0),f<0&&(f=e),f=Math.min(f,e);var k=c.slice(d+f,e-f);if(c=c.slice(d,f),e=c.length,!e)return void j(c,g,!0);for(var l,m=0,n=function(){m++,m===e&&(j(c,g,!k),b(k,0,0,f,g))},o=0;o<c.length;o++)h(c[o])||(l=new Image,l.src=c[o].url,l=i(l),l.complete?n():a(l).on("load error",n))}}}(),j=function(b){for(var c=[],d=0;d<b.length;d++)"string"==typeof b[d]?c.push({url:b[d]}):a.isArray(b[d])?c.push(j(b[d])):c.push(k(b[d]));return c},k=function(a,e){return(a.centeredX||a.centeredY)&&(b.console&&b.console.log&&b.console.log("jquery.backstretch: `centeredX`/`centeredY` is deprecated, please use `alignX`/`alignY`"),a.centeredX&&(a.alignX=.5),a.centeredY&&(a.alignY=.5)),a.speed!==c&&(b.console&&b.console.log&&b.console.log("jquery.backstretch: `speed` is deprecated, please use `transitionDuration`"),a.transitionDuration=a.speed,a.transition="fade"),a.resolutionChangeRatioTreshold!==c&&(b.console.log("jquery.backstretch: `treshold` is a typo!"),a.resolutionChangeRatioThreshold=a.resolutionChangeRatioTreshold),a.fadeFirst!==c&&(a.animateFirst=a.fadeFirst),a.fade!==c&&(a.transitionDuration=a.fade,a.transition="fade"),a.scale&&(a.scale=d(a.scale)),l(a)},l=function(a,b){return"left"===a.alignX?a.alignX=0:"center"===a.alignX?a.alignX=.5:"right"===a.alignX?a.alignX=1:(a.alignX!==c||b)&&(a.alignX=parseFloat(a.alignX),isNaN(a.alignX)&&(a.alignX=.5)),"top"===a.alignY?a.alignY=0:"center"===a.alignY?a.alignY=.5:"bottom"===a.alignY?a.alignY=1:(a.alignX!==c||b)&&(a.alignY=parseFloat(a.alignY),isNaN(a.alignY)&&(a.alignY=.5)),a},m={cover:"cover",fit:"fit","fit-smaller":"fit-smaller",fill:"fill"},n=function(c,d,e){this.options=a.extend({},a.fn.backstretch.defaults,e||{}),this.firstShow=!0,k(this.options,!0),this.images=j(a.isArray(d)?d:[d]),this.options.paused&&(this.paused=!0),this.options.start>=this.images.length&&(this.options.start=this.images.length-1),this.options.start<0&&(this.options.start=0),this.isBody=c===document.body;var h=a(b);this.$container=a(c),this.$root=this.isBody?s?h:a(document):this.$container,this.originalImages=this.images,this.images=g(this.options.alwaysTestWindowResolution?h:this.$root,this.originalImages),i(this.images,this.options.start||0,this.options.preload||1);var l=this.$container.children(".backstretch").first();if(this.$wrap=l.length?l:a('<div class="backstretch"></div>').css(this.options.bypassCss?{}:f.wrap).appendTo(this.$container),!this.options.bypassCss){if(!this.isBody){var m=this.$container.css("position"),n=this.$container.css("zIndex");this.$container.css({position:"static"===m?"relative":m,zIndex:"auto"===n?0:n}),this.$wrap.css({zIndex:-999998})}this.$wrap.css({position:this.isBody&&s?"fixed":"absolute"})}this.index=this.options.start,this.show(this.index),h.on("resize.backstretch",a.proxy(this.resize,this)).on("orientationchange.backstretch",a.proxy(function(){this.isBody&&0===b.pageYOffset&&(b.scrollTo(0,1),this.resize())},this))},o=function(b){var d=b.transition||"fade";"string"==typeof d&&d.indexOf("|")>-1&&(d=d.split("|")),d instanceof Array&&(d=d[Math.round(Math.random()*(d.length-1))]);var e=b.new,f=b.old?b.old:a([]);switch(d.toString().toLowerCase()){default:case"fade":e.fadeIn({duration:b.duration,complete:b.complete,easing:b.easing||c});break;case"fadeinout":case"fade_in_out":var g=function(){e.fadeIn({duration:b.duration/2,complete:b.complete,easing:b.easing||c})};f.length?f.fadeOut({duration:b.duration/2,complete:g,easing:b.easing||c}):g();break;case"pushleft":case"push_left":case"pushright":case"push_right":case"pushup":case"push_up":case"pushdown":case"push_down":case"coverleft":case"cover_left":case"coverright":case"cover_right":case"coverup":case"cover_up":case"coverdown":case"cover_down":var h=d.match(/^(cover|push)_?(.*)$/),i="left"===h[2]?"right":"right"===h[2]?"left":"down"===h[2]?"top":"up"===h[2]?"bottom":"right",j={display:""},k={};if(j[i]="-100%",k[i]=0,e.css(j).animate(k,{duration:b.duration,complete:function(){e.css(i,""),b.complete.apply(this,arguments)},easing:b.easing||c}),"push"===h[1]&&f.length){var l={};l[i]="100%",f.animate(l,{duration:b.duration,complete:function(){f.css("display","none")},easing:b.easing||c})}}};n.prototype={resize:function(){try{var e=this.options.alwaysTestWindowResolution?a(b):this.$root,f=e.width(),h=e.height(),j=f/(this._lastResizeContainerWidth||0),k=h/(this._lastResizeContainerHeight||0),l=this.options.resolutionChangeRatioThreshold||0;if((f!==this._lastResizeContainerWidth||h!==this._lastResizeContainerHeight)&&(Math.abs(j-1)>=l||isNaN(j)||Math.abs(k-1)>=l||isNaN(k))&&(this._lastResizeContainerWidth=f,this._lastResizeContainerHeight=h,this.images=g(e,this.originalImages),this.options.preload&&i(this.images,(this.index+1)%this.images.length,this.options.preload),1===this.images.length&&this._currentImage.url!==this.images[0].url)){var m=this;clearTimeout(m._selectAnotherResolutionTimeout),m._selectAnotherResolutionTimeout=setTimeout(function(){m.show(0)},this.options.resolutionRefreshRate)}var n,o,p={left:0,top:0,right:"auto",bottom:"auto"},q=this.isBody?this.$root.width():this.$root.innerWidth(),r=this.isBody?b.innerHeight?b.innerHeight:this.$root.height():this.$root.innerHeight(),s=this.$itemWrapper.data("width"),t=this.$itemWrapper.data("height"),u=s/t||1,v=this._currentImage.alignX===c?this.options.alignX:this._currentImage.alignX,w=this._currentImage.alignY===c?this.options.alignY:this._currentImage.alignY,x=d(this._currentImage.scale||this.options.scale);if("fit"===x||"fit-smaller"===x){if(n=s,o=t,n>q||o>r||"fit-smaller"===x){var y=q/r;y>u?(n=Math.floor(r*u),o=r):y<u?(n=q,o=Math.floor(q/u)):(n=q,o=r)}}else"fill"===x?(n=q,o=r):(n=Math.max(r*u,q),o=Math.max(n/u,r));p.top=-(o-r)*w,p.left=-(n-q)*v,p.width=n,p.height=o,this.options.bypassCss||this.$wrap.css({width:q,height:r}).find(">.backstretch-item").not(".deleteable").each(function(){var b=a(this);b.find("img,video,iframe").css(p)});var 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a.unshift(this.index<this.images.length-1?this.index+1:0),this.show.apply(this,a)},prev:function(){var a=Array.prototype.slice.call(arguments,0);return a.unshift(0===this.index?this.images.length-1:this.index-1),this.show.apply(this,a)},pause:function(){return this.paused=!0,this.videoWrapper&&this.videoWrapper.pause(),this},resume:function(){return this.paused=!1,this.videoWrapper&&this.videoWrapper.play(),this.cycle(),this},cycle:function(){if(this.images.length>1){clearTimeout(this._cycleTimeout);var b=this._currentImage&&this._currentImage.duration||this.options.duration,c=h(this._currentImage),d=function(){this.$item.off(".cycle"),this.paused||this.next()};if(c){if(!this._currentImage.loop){var e=0;this.$item.on("playing.cycle",function(){var b=a(this).data("player");clearTimeout(e),e=setTimeout(function(){b.pause(),b.$video.trigger("ended")},1e3*(b.getDuration()-b.getCurrentTime()))}).on("ended.cycle",function(){clearTimeout(e)})}this.$item.on("error.cycle 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/>").attr({src_to_load:j}).css({border:0,margin:0,padding:0}).data("player",g),d.loop&&f.on("ended.loop",function(){g.__manuallyStopped||g.play()}),g.ytReady=!1,h(),b.YT?(g._initYoutube(),f.trigger("initsuccess")):a(b).one("youtube_api_load",function(){g._initYoutube(),f.trigger("initsuccess")})}else{f=a("<video>").prop("autoplay",!1).prop("controls",!1).prop("loop",!!d.loop).prop("muted",!!d.mute||d.mute===c).prop("preload","auto").prop("poster",d.poster||"");for(var k=d.url instanceof Array?d.url:[d.url],l=0;l<k.length;l++){var m=k[l];"string"==typeof m&&(m={src:m}),a("<source>").attr("src",m.src).attr("type",m.type||null).appendTo(f)}f[0].canPlayType&&k.length?f.trigger("initsuccess"):f.trigger("initerror"),h()}},p.prototype._initYoutube=function(){var c=this,d=b.YT;c.$video.attr("src",c.$video.attr("src_to_load")).removeAttr("src_to_load");var e=!!c.$video[0].parentNode;if(!e){var f=a("<div>").css("display","none !important").appendTo(document.body);c.$video.appendTo(f)}var g=new d.Player(c.video,{events:{onReady:function(){c.__ytStartMuted&&g.mute(),e||(c.$video[0].parentNode===f[0]&&c.$video.detach(),f.remove()),c.ytReady=!0,c._updateYoutubeSize(),c.$video.trigger("canplay")},onStateChange:function(a){switch(a.data){case d.PlayerState.PLAYING:c.$video.trigger("playing");break;case d.PlayerState.ENDED:c.$video.trigger("ended");break;case d.PlayerState.PAUSED:c.$video.trigger("pause");break;case d.PlayerState.BUFFERING:c.$video.trigger("waiting");break;case d.PlayerState.CUED:c.$video.trigger("canplay")}},onPlaybackQualityChange:function(){c._updateYoutubeSize(),c.$video.trigger("resize")},onError:function(a){c.hasError=!0,c.$video.trigger({type:"error",error:a})}}});return c.ytPlayer=g,c},p.prototype._updateYoutubeSize=function(){var a=this;switch(a.ytPlayer.getPlaybackQuality()||"medium"){case"small":a.video.videoWidth=426,a.video.videoHeight=240;break;case"medium":a.video.videoWidth=640,a.video.videoHeight=360;break;default:case"large":a.video.videoWidth=854,a.video.videoHeight=480;break;case"hd720":a.video.videoWidth=1280,a.video.videoHeight=720;break;case"hd1080":a.video.videoWidth=1920,a.video.videoHeight=1080;break;case"highres":a.video.videoWidth=2560,a.video.videoHeight=1440}return a},p.prototype.play=function(){var a=this;return a.__manuallyStopped=!1,"youtube"===a.type?a.ytReady&&(a.$video.trigger("play"),a.ytPlayer.playVideo()):a.video.play(),a},p.prototype.pause=function(){var a=this;return a.__manuallyStopped=!1,"youtube"===a.type?a.ytReady&&a.ytPlayer.pauseVideo():a.video.pause(),a},p.prototype.stop=function(){var a=this;return a.__manuallyStopped=!0,"youtube"===a.type?a.ytReady&&(a.ytPlayer.pauseVideo(),a.ytPlayer.seekTo(0)):(a.video.pause(),a.video.currentTime=0),a},p.prototype.destroy=function(){var a=this;return a.ytPlayer&&a.ytPlayer.destroy(),a.$video.remove(),a},p.prototype.getCurrentTime=function(a){var b=this;return"youtube"!==b.type?b.video.currentTime:b.ytReady?b.ytPlayer.getCurrentTime():0},p.prototype.setCurrentTime=function(a){var b=this;return"youtube"===b.type?b.ytReady&&b.ytPlayer.seekTo(a,!0):b.video.currentTime=a,b},p.prototype.getDuration=function(){var a=this;return"youtube"!==a.type?a.video.duration:a.ytReady?a.ytPlayer.getDuration():0},p.loadYoutubeAPI=function(){if(!b.YT){a("script[src*=www\\.youtube\\.com\\/iframe_api]").length||a('<script type="text/javascript" src="https://www.youtube.com/iframe_api">').appendTo("body");var c=setInterval(function(){b.YT&&b.YT.loaded&&(a(b).trigger("youtube_api_load"),clearTimeout(c))},50)}};var q=function(){if("matchMedia"in b){if(b.matchMedia("(orientation: portrait)").matches)return"portrait";if(b.matchMedia("(orientation: landscape)").matches)return"landscape"}return screen.height>screen.width?"portrait":"landscape"},r=function(){return b.innerHeight>b.innerWidth?"portrait":b.innerWidth>b.innerHeight?"landscape":"square"},s=function(){var a=navigator.userAgent,c=navigator.platform,d=a.match(/AppleWebKit\/([0-9]+)/),e=!!d&&d[1],f=a.match(/Fennec\/([0-9]+)/),g=!!f&&f[1],h=a.match(/Opera Mobi\/([0-9]+)/),i=!!h&&h[1],j=a.match(/MSIE ([0-9]+)/),k=!!j&&j[1];return!((c.indexOf("iPhone")>-1||c.indexOf("iPad")>-1||c.indexOf("iPod")>-1)&&e&&e<534||b.operamini&&"[object OperaMini]"==={}.toString.call(b.operamini)||h&&i<7458||a.indexOf("Android")>-1&&e&&e<533||g&&g<6||"palmGetResource"in b&&e&&e<534||a.indexOf("MeeGo")>-1&&a.indexOf("NokiaBrowser/8.5.0")>-1||k&&k<=6)}()}(jQuery,window);
\ No newline at end of file
+/*! Backstretch - v2.1.18 - 2019-09-18\n* Copyright (c) 2019 Scott Robbin;* Fork of improvements - by Daniel Cohen Gindi (danielgindi@gmail.com) Licensed MIT */!function(a,b,c){"use strict";function d(a){return m.hasOwnProperty(a)?a:"cover"}var e=/^.*(youtu\.be\/|youtube\.com\/v\/|youtube\.com\/embed\/|youtube\.com\/watch\?v=|youtube\.com\/watch\?.*\&v=)([^#\&\?]*).*/i;a.fn.backstretch=function(d,e){var f=arguments;0===a(b).scrollTop()&&b.scrollTo(0,0);var g;return this.each(function(b){var h=a(this),i=h.data("backstretch");if(i){if("string"==typeof f[0]&&"function"==typeof i[f[0]]){var j=i[f[0]].apply(i,Array.prototype.slice.call(f,1));return j===i&&(j=c),void(j!==c&&(g=g||[],g[b]=j))}e=a.extend(i.options,e),"object"==typeof i&&"destroy"in i&&i.destroy(!0)}if(!d||d&&0===d.length){var k=h.css("background-image");k&&"none"!==k?d=[{url:h.css("backgroundImage").replace(/url\(|\)|"|'/g,"")}]:a.error("No images were supplied for Backstretch, or element must have a CSS-defined background 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c},k=function(a,e){return(a.centeredX||a.centeredY)&&(b.console&&b.console.log&&b.console.log("jquery.backstretch: `centeredX`/`centeredY` is deprecated, please use `alignX`/`alignY`"),a.centeredX&&(a.alignX=.5),a.centeredY&&(a.alignY=.5)),a.speed!==c&&(b.console&&b.console.log&&b.console.log("jquery.backstretch: `speed` is deprecated, please use `transitionDuration`"),a.transitionDuration=a.speed,a.transition="fade"),a.resolutionChangeRatioTreshold!==c&&(b.console.log("jquery.backstretch: `treshold` is a 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h=a(b);this.$container=a(c),this.$root=this.isBody?s?h:a(document):this.$container,this.originalImages=this.images,this.images=g(this.options.alwaysTestWindowResolution?h:this.$root,this.originalImages),i(this.images,this.options.start||0,this.options.preload||1);var l=this.$container.children(".backstretch").first();if(this.$wrap=l.length?l:a('<div class="backstretch"></div>').css(this.options.bypassCss?{}:f.wrap).appendTo(this.$container),!this.options.bypassCss){if(!this.isBody){var m=this.$container.css("position"),n=this.$container.css("zIndex");this.$container.css({position:"static"===m?"relative":m,zIndex:"auto"===n?0:n}),this.$wrap.css({zIndex:-999998})}this.$wrap.css({position:this.isBody&&s?"fixed":"absolute"})}this.index=this.options.start,this.show(this.index),h.on("resize.backstretch",a.proxy(this.resize,this)).on("orientationchange.backstretch",a.proxy(function(){this.isBody&&0===b.pageYOffset&&(b.scrollTo(0,1),this.resize())},this))},o=function(b){var d=b.transition||"fade";"string"==typeof d&&d.indexOf("|")>-1&&(d=d.split("|")),d instanceof Array&&(d=d[Math.round(Math.random()*(d.length-1))]);var e=b.new,f=b.old?b.old:a([]);switch(d.toString().toLowerCase()){default:case"fade":e.fadeIn({duration:b.duration,complete:b.complete,easing:b.easing||c});break;case"fadeinout":case"fade_in_out":var g=function(){e.fadeIn({duration:b.duration/2,complete:b.complete,easing:b.easing||c})};f.length?f.fadeOut({duration:b.duration/2,complete:g,easing:b.easing||c}):g();break;case"pushleft":case"push_left":case"pushright":case"push_right":case"pushup":case"push_up":case"pushdown":case"push_down":case"coverleft":case"cover_left":case"coverright":case"cover_right":case"coverup":case"cover_up":case"coverdown":case"cover_down":var h=d.match(/^(cover|push)_?(.*)$/),i="left"===h[2]?"right":"right"===h[2]?"left":"down"===h[2]?"top":"up"===h[2]?"bottom":"right",j={display:""},k={};if(j[i]="-100%",k[i]=0,e.css(j).animate(k,{duration:b.duration,complete:function(){e.css(i,""),b.complete.apply(this,arguments)},easing:b.easing||c}),"push"===h[1]&&f.length){var l={};l[i]="100%",f.animate(l,{duration:b.duration,complete:function(){f.css("display","none")},easing:b.easing||c})}}};n.prototype={resize:function(){try{var e=this.options.alwaysTestWindowResolution?a(b):this.$root,f=e.width(),h=e.height(),j=f/(this._lastResizeContainerWidth||0),k=h/(this._lastResizeContainerHeight||0),l=this.options.resolutionChangeRatioThreshold||0;if((f!==this._lastResizeContainerWidth||h!==this._lastResizeContainerHeight)&&(Math.abs(j-1)>=l||isNaN(j)||Math.abs(k-1)>=l||isNaN(k))&&(this._lastResizeContainerWidth=f,this._lastResizeContainerHeight=h,this.images=g(e,this.originalImages),this.options.preload&&i(this.images,(this.index+1)%this.images.length,this.options.preload),1===this.images.length&&this._currentImage.url!==this.images[0].url)){var m=this;clearTimeout(m._selectAnotherResolutionTimeout),m._selectAnotherResolutionTimeout=setTimeout(function(){m.show(0)},this.options.resolutionRefreshRate)}var n,o,p={left:0,top:0,right:"auto",bottom:"auto"},q=this.isBody?this.$root.width():this.$root.innerWidth(),r=this.isBody?b.innerHeight?b.innerHeight:this.$root.height():this.$root.innerHeight(),s=this.$itemWrapper.data("width"),t=this.$itemWrapper.data("height"),u=s/t||1,v=this._currentImage.alignX===c?this.options.alignX:this._currentImage.alignX,w=this._currentImage.alignY===c?this.options.alignY:this._currentImage.alignY,x=d(this._currentImage.scale||this.options.scale);if("fit"===x||"fit-smaller"===x){if(n=s,o=t,n>q||o>r||"fit-smaller"===x){var y=q/r;y>u?(n=Math.floor(r*u),o=r):y<u?(n=q,o=Math.floor(q/u)):(n=q,o=r)}}else"fill"===x?(n=q,o=r):(n=Math.max(r*u,q),o=Math.max(n/u,r));p.top=-(o-r)*w,p.left=-(n-q)*v,p.width=n,p.height=o,this.options.bypassCss||this.$wrap.css({width:q,height:r}).find(">.backstretch-item").not(".deleteable").each(function(){var b=a(this);b.find("img,video,iframe").css(p)});var z=a.Event("backstretch.resize",{relatedTarget:this.$container[0]});this.$container.trigger(z,this)}catch(a){}return this},show:function(b,d){if(!(Math.abs(b)>this.images.length-1)){var e=this,g=e.$wrap.find(">.backstretch-item").addClass("deleteable"),i=e.videoWrapper,j={relatedTarget:e.$container[0]};e.$container.trigger(a.Event("backstretch.before",j),[e,b]),this.index=b;var k=e.images[b];clearTimeout(e._cycleTimeout),delete e.videoWrapper;var l=h(k);return l?(e.videoWrapper=new p(k),e.$item=e.videoWrapper.$video.css("pointer-events","none")):e.$item=a("<img />"),e.$itemWrapper=a('<div class="backstretch-item">').append(e.$item),this.options.bypassCss?e.$itemWrapper.css({display:"none"}):(e.$itemWrapper.css(f.itemWrapper),e.$item.css(f.item)),e.$item.bind(l?"canplay":"load",function(f){var h=a(this),k=h.parent(),m=k.data("options");d&&(m=a.extend({},m,d));var n=this.naturalWidth||this.videoWidth||this.width,p=this.naturalHeight||this.videoHeight||this.height;k.data("width",n).data("height",p);var q=function(a){return m[a]!==c?m[a]:e.options[a]},r=q("transition"),s=q("transitionEasing"),t=q("transitionDuration"),u=function(){i&&(i.stop(),i.destroy()),g.remove(),!e.paused&&e.images.length>1&&e.cycle(),e.options.bypassCss||e.isBody||e.$container.css("background-image","none"),a(["after","show"]).each(function(){e.$container.trigger(a.Event("backstretch."+this,j),[e,b])}),l&&e.videoWrapper.play()};e.firstShow&&!e.options.animateFirst||!t||!r?(k.show(),u()):o({new:k,old:g,transition:r,duration:t,easing:s,complete:u}),e.firstShow=!1,e.resize()}),e.$itemWrapper.appendTo(e.$wrap),e.$item.attr("alt",k.alt||""),e.$itemWrapper.data("options",k),l||e.$item.attr("src",k.url),e._currentImage=k,e}},current:function(){return this.index},next:function(){var a=Array.prototype.slice.call(arguments,0);return a.unshift(this.index<this.images.length-1?this.index+1:0),this.show.apply(this,a)},prev:function(){var a=Array.prototype.slice.call(arguments,0);return a.unshift(0===this.index?this.images.length-1:this.index-1),this.show.apply(this,a)},pause:function(){return this.paused=!0,this.videoWrapper&&this.videoWrapper.pause(),this},resume:function(){return this.paused=!1,this.videoWrapper&&this.videoWrapper.play(),this.cycle(),this},cycle:function(){if(this.images.length>1){clearTimeout(this._cycleTimeout);var b=this._currentImage&&this._currentImage.duration||this.options.duration,c=h(this._currentImage),d=function(){this.$item.off(".cycle"),this.paused||this.next()};if(c){if(!this._currentImage.loop){var e=0;this.$item.on("playing.cycle",function(){var b=a(this).data("player");clearTimeout(e),e=setTimeout(function(){b.pause(),b.$video.trigger("ended")},1e3*(b.getDuration()-b.getCurrentTime()))}).on("ended.cycle",function(){clearTimeout(e)})}this.$item.on("error.cycle initerror.cycle",a.proxy(d,this))}c&&!this._currentImage.duration?this.$item.on("ended.cycle",a.proxy(d,this)):this._cycleTimeout=setTimeout(a.proxy(d,this),b)}return this},destroy:function(c){a(b).off("resize.backstretch orientationchange.backstretch"),this.videoWrapper&&this.videoWrapper.destroy(),clearTimeout(this._cycleTimeout),c||this.$wrap.remove(),this.$container.removeData("backstretch")}};var p=function(){this.init.apply(this,arguments)};p.prototype.init=function(d){var f,g=this,h=function(){g.$video=f,g.video=f[0]},i="video";if(d.url instanceof Array||!e.test(d.url)||(i="youtube"),g.type=i,"youtube"===i){p.loadYoutubeAPI(),g.ytId=d.url.match(e)[2];var j="https://www.youtube.com/embed/"+g.ytId+"?rel=0&autoplay=0&showinfo=0&controls=0&modestbranding=1&cc_load_policy=0&disablekb=1&iv_load_policy=3&loop=0&enablejsapi=1&origin="+encodeURIComponent(b.location.origin);g.__ytStartMuted=!!d.mute||d.mute===c,f=a("<iframe />").attr({src_to_load:j}).css({border:0,margin:0,padding:0}).data("player",g),d.loop&&f.on("ended.loop",function(){g.__manuallyStopped||g.play()}),g.ytReady=!1,h(),b.YT&&b.YT.loaded?(g._initYoutube(),f.trigger("initsuccess")):a(b).one("youtube_api_load",function(){g._initYoutube(),f.trigger("initsuccess")})}else{f=a("<video>").prop("autoplay",!1).prop("controls",!1).prop("loop",!!d.loop).prop("muted",!!d.mute||d.mute===c).prop("preload","auto").prop("poster",d.poster||"");for(var k=d.url instanceof Array?d.url:[d.url],l=0;l<k.length;l++){var m=k[l];"string"==typeof m&&(m={src:m}),a("<source>").attr("src",m.src).attr("type",m.type||null).appendTo(f)}f[0].canPlayType&&k.length?f.trigger("initsuccess"):f.trigger("initerror"),h()}},p.prototype._initYoutube=function(){var c=this,d=b.YT;c.$video.attr("src",c.$video.attr("src_to_load")).removeAttr("src_to_load");var e=!!c.$video[0].parentNode;if(!e){var f=a("<div>").css("display","none !important").appendTo(document.body);c.$video.appendTo(f)}var g=new d.Player(c.video,{events:{onReady:function(){c.__ytStartMuted&&g.mute(),e||(c.$video[0].parentNode===f[0]&&c.$video.detach(),f.remove()),c.ytReady=!0,c._updateYoutubeSize(),c.$video.trigger("canplay")},onStateChange:function(a){switch(a.data){case d.PlayerState.PLAYING:c.$video.trigger("playing");break;case d.PlayerState.ENDED:c.$video.trigger("ended");break;case d.PlayerState.PAUSED:c.$video.trigger("pause");break;case d.PlayerState.BUFFERING:c.$video.trigger("waiting");break;case d.PlayerState.CUED:c.$video.trigger("canplay")}},onPlaybackQualityChange:function(){c._updateYoutubeSize(),c.$video.trigger("resize")},onError:function(a){c.hasError=!0,c.$video.trigger({type:"error",error:a})}}});return c.ytPlayer=g,c},p.prototype._updateYoutubeSize=function(){var a=this;switch(a.ytPlayer.getPlaybackQuality()||"medium"){case"small":a.video.videoWidth=426,a.video.videoHeight=240;break;case"medium":a.video.videoWidth=640,a.video.videoHeight=360;break;default:case"large":a.video.videoWidth=854,a.video.videoHeight=480;break;case"hd720":a.video.videoWidth=1280,a.video.videoHeight=720;break;case"hd1080":a.video.videoWidth=1920,a.video.videoHeight=1080;break;case"highres":a.video.videoWidth=2560,a.video.videoHeight=1440}return a},p.prototype.play=function(){var a=this;return a.__manuallyStopped=!1,"youtube"===a.type?a.ytReady&&(a.$video.trigger("play"),a.ytPlayer.playVideo()):a.video.play(),a},p.prototype.pause=function(){var a=this;return a.__manuallyStopped=!1,"youtube"===a.type?a.ytReady&&a.ytPlayer.pauseVideo():a.video.pause(),a},p.prototype.stop=function(){var a=this;return a.__manuallyStopped=!0,"youtube"===a.type?a.ytReady&&(a.ytPlayer.pauseVideo(),a.ytPlayer.seekTo(0)):(a.video.pause(),a.video.currentTime=0),a},p.prototype.destroy=function(){var a=this;return a.ytPlayer&&a.ytPlayer.destroy(),a.$video.remove(),a},p.prototype.getCurrentTime=function(a){var b=this;return"youtube"!==b.type?b.video.currentTime:b.ytReady?b.ytPlayer.getCurrentTime():0},p.prototype.setCurrentTime=function(a){var b=this;return"youtube"===b.type?b.ytReady&&b.ytPlayer.seekTo(a,!0):b.video.currentTime=a,b},p.prototype.getDuration=function(){var a=this;return"youtube"!==a.type?a.video.duration:a.ytReady?a.ytPlayer.getDuration():0},p.loadYoutubeAPI=function(){b.YT&&b.__yt_load_event_interval__||(b.YT||a("script[src*=www\\.youtube\\.com\\/iframe_api]").length||a('<script type="text/javascript" src="https://www.youtube.com/iframe_api">').appendTo("body"),b.__yt_load_event_interval__=setInterval(function(){b.YT&&b.YT.loaded&&(a(b).trigger("youtube_api_load"),clearTimeout(b.__yt_load_event_interval__),delete b.__yt_load_event_interval__)},50))};var q=function(){if("matchMedia"in b){if(b.matchMedia("(orientation: portrait)").matches)return"portrait";if(b.matchMedia("(orientation: landscape)").matches)return"landscape"}return screen.height>screen.width?"portrait":"landscape"},r=function(){return b.innerHeight>b.innerWidth?"portrait":b.innerWidth>b.innerHeight?"landscape":"square"},s=function(){var a=navigator.userAgent,c=navigator.platform,d=a.match(/AppleWebKit\/([0-9]+)/),e=!!d&&d[1],f=a.match(/Fennec\/([0-9]+)/),g=!!f&&f[1],h=a.match(/Opera Mobi\/([0-9]+)/),i=!!h&&h[1],j=a.match(/MSIE ([0-9]+)/),k=!!j&&j[1];return!((c.indexOf("iPhone")>-1||c.indexOf("iPad")>-1||c.indexOf("iPod")>-1)&&e&&e<534||b.operamini&&"[object OperaMini]"==={}.toString.call(b.operamini)||h&&i<7458||a.indexOf("Android")>-1&&e&&e<533||g&&g<6||"palmGetResource"in b&&e&&e<534||a.indexOf("MeeGo")>-1&&a.indexOf("NokiaBrowser/8.5.0")>-1||k&&k<=6)}()}(jQuery,window);
\ No newline at end of file
diff --git a/package.json b/package.json
index 4df1869..9aa76da 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "jquery-backstretch",
   "title": "Backstretch",
   "description": "A simple jQuery plugin that allows you to add a dynamically-resized, slideshow-capable background image to any page or element.",
-  "version": "2.1.17",
+  "version": "2.1.18",
   "main": "jquery.backstretch.js",
   "author": {
     "name": "Scott Robbin",
diff --git a/src/jquery.backstretch.js b/src/jquery.backstretch.js
index 8472aa6..9e262d7 100644
--- a/src/jquery.backstretch.js
+++ b/src/jquery.backstretch.js
@@ -1228,7 +1228,7 @@
 
       setVideoElement();
 
-      if (window['YT']) {
+      if (window['YT'] && window['YT'].loaded) {
         that._initYoutube();
         $video.trigger('initsuccess');
       }
@@ -1501,16 +1501,19 @@
    * Use $(window).one('youtube_api_load', ...) to listen for API loaded event
    */
   VideoWrapper.loadYoutubeAPI = function () {
-    if (window['YT']) {
+    if (window['YT'] && window['__yt_load_event_interval__']) {
       return;
     }
-    if (!$('script[src*=www\\.youtube\\.com\\/iframe_api]').length) {
+    
+    if (!window['YT'] && !$('script[src*=www\\.youtube\\.com\\/iframe_api]').length) {
       $('<script type="text/javascript" src="https://www.youtube.com/iframe_api">').appendTo('body');
     }
-    var ytAPILoadInt = setInterval(function () {
+    
+    window['__yt_load_event_interval__'] = setInterval(function () {
       if (window['YT'] && window['YT'].loaded) {
         $(window).trigger('youtube_api_load');
-        clearTimeout(ytAPILoadInt);
+        clearTimeout(window['__yt_load_event_interval__']);
+        delete window['__yt_load_event_interval__'];
       }
     }, 50);
   };