Update background.js

core/background.js

-// https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/StreamFilter/ondata
+// for testing use on BitChute
 
 
 function listener(details) { // todo  simply return, if attribute 'crossorigin' doesn't appear
@@ -7,12 +7,15 @@ function listener(details) { // todo  simply return, if attribute 'crossorigin'
 	let encoder = new TextEncoder(); // can be reused?
 
 	filter.ondata = event => {
-		console.log(event.data); 
+		//console.log(event.data); 
 		let str = decoder.decode(event.data, {
 				stream : true
 			});
 		////////////////  regex needs work!!!!!!
-		str = str.replace(/(?!<script .*?)crossorigin(?=.*>)/gi, 'noop'); // todo  replace with ''?
+		let before = '<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.4/jquery.min.js">';
+		let after = '<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.4/jquery.min.js" crossorigin >';
+		//let after = '<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"  crossorigin onerror="alert('onerror!')">';
+		str = str.replace(before, after);  
 		filter.write(encoder.encode(str));
 		filter.disconnect();
 	}