Remove DOM window URI check

Per discussion in #2937

extensions/firefox/components/PdfStreamConverter.js

@@ -765,8 +765,6 @@ PdfStreamConverter.prototype = {
         // We get the DOM window here instead of before the request since it
         // may have changed during a redirect.
         var domWindow = getDOMWindow(channel);
-        // Double check the url is still the correct one.
-        if (domWindow.document.documentURIObject.equals(aRequest.URI)) {
         var actions;
         if (rangeRequest) {
           // We are going to be issuing range requests, so cancel the
@@ -790,9 +788,6 @@ PdfStreamConverter.prototype = {
                                                       chromeWindow);
           findEventManager.bind();
         }
-        } else {
-          log('Dom window url did not match request url.');
-        }
         listener.onStopRequest(aRequest, context, statusCode);
       }
     };