How about this:
define("lib/tracking",["require","exports","module","_","lib/ad-manager","lib/analytics","config","lib/event-bus","tracking-events","lib/url","lib/play-manager"],function(a,b,c){function x(a,b){var c=d.last(a.split(":")),e=b&&b.model?b.model:b,g=e&&"getUrn"in e?e.getUrn():null,h=!1,j;switch(a){case"audio:play":case"audio:pause":case"audio:finish":c==="finish"&&(c="stop"),j=p;break;case l.LIKE_BUTTON_CLICKED:case l.FOLLOW_BUTTON_CLICKED:case l.SHARE_BUTTON_CLICKED:case l.DOWNLOAD_LINK_CLICKED:case l.BUY_LINK_CLICKED:case l.SHARE_VIEW_OPENED:case l.LINK_BUTTON_CLICKED:case l.LINK_INPUT_CLICKED:case l.EMBED_BUTTON_CLICKED:case l.ARTWORK_CLICKED:case l.PLAYLIST_SCROLLED:case l.TITLE_LINK_CLICKED:case l.CREATOR_LINK_CLICKED:case l.LOGO_LINK_CLICKED:case l.RELATED_VIEW_OPENED:case l.RELATED_VIEW_CLICKED:j=r;break;case m.IMPRESSION:case m.CLICKED:case m.SKIPPED:case m.FINISH:j=s;break;case l.WAVEFORM_CLICKED:j=r,h=!0;break;case l.SHARE_ICON_CLICKED:j=r,c+="::"+b.shareIconType,g=b.model.getUrn();break;case n.LOAD:B(b);break;case i.MISC.PT_LOCAL_USED:j=i.MISC}if(h){t.hasOwnProperty(g)||(t[g]={});if(!t[g].hasOwnProperty(c))t[g][c]=!0;else return}c&&j===p?z(c,e,b):j===s&&c==="impression"?f.trackImpression(o,undefined,E(),b):j&&c&&f.trackClick({level:o,chapter:b&&b.chapter||[c,g]},b),a==="audio:finish"&&delete t[g]}function y(){f.trackPageView({level:o,chapter:[u,j.parse(window.location.href).query.url]})}function z(a,b){var c=b,g=e.getCurrentAd(),h=b.playbackOptions,i,j;k.sourceIsCollection()&&k.source.getInfo&&(i=k.source.getInfo()),j={action:a,chapter:["sound",u,b.getUrn()].join("::"),duration:b.get("duration"),level:o,urn:b.getUrn(),trigger:h.userAction?"manual":"auto",context:h.view||"",source:i,protocol:b.audio&&b.audio.streamInfo&&b.audio.streamInfo.protocol,checkpointInterval:h.checkpointInterval,policy:b.get("policy")},b.playbackOptions={},g&&g.sound&&g.sound===c&&d.extend(j,{ad_urn:g.get("audio").ad_urn,monetization_type:g.getMonetizationType(),monetized_object:c.getUrn(),policy:null,promoted_by:null}),f.trackAudioEvent(j)}function A(){if(window._gaq!=null){var a=window.innerWidth||document.body.clientWidth,b=window.innerHeight||document.body.clientHeight,c;a=Math.round(a/100)*100,b=Math.round(b/100)*100,c=a+"x"+b,window._gaq.push(["_trackEvent","Widget container size","Range",c])}}function B(a){f.trackAppLoad(o,E(),a.latency)}function C(a,b,c){if(!v(a))return;window._gaq!=null&&window._gaq.push(["_trackEvent",q,"JS - "+a,"file:"+b+"; line:"+c])}function D(a){var b=a.get("xhr");b&&b.status.toString().indexOf("5")===0&&window._gaq!=null&&window._gaq.push(["_trackEvent",q,b.status+" - "+b.statusText,"url:"+b.url])}function E(){return g.get("me").id||null}var d=a("_"),e=a("lib/ad-manager"),f=a("lib/analytics"),g=a("config"),h=a("lib/event-bus"),i=a("tracking-events"),j=a("lib/url"),k=a("lib/play-manager"),l=i.UI,m=i.ADS,n=i.APP,o=0,p="Tracks",q="Error",r="UI",s="Ads",t={},u=j.parse(document.referrer).host,v,w=c.exports={init:d.once(function(){f.initialize();var a=["audio:play","audio:pause","audio:finish"];Object.keys(i).forEach(function(b){a.push.apply(a,d.values(i[b]))}),a.forEach(function(a){h.on(a,x.bind(null,a))}),window.onerror=C,h.on("exception",D).on("layout:change",function(){y(),A()})})};v=function(){function b(a){return this.message.indexOf(a)>-1}var a=["Error: Permission denied to access property 'toString'","Script error.","stopAudioAdsTimer","ReferenceError: Can't find variable: dzPlayer","Error connecting to extension"];return function(c){return!a.some(b,{message:c})}}()}),
That is what appears at line 36 under wp-admin, at https://www.obscurereviews.com/wp-admin/customize.php?url=http%3A%2F%2Fwww.obscurereviews.com%2F
An error code tells me that 'webkitURL' is deprecated. Please use 'URL' instead.
A widget link next to the error code directed me to line 36, the address was a soundcloud link. I used a soundcloud link for a track review. I have removed the link, and
Continue reading at
persists.
Even if I solve this myself, I am going to do it on this forum.