Pixel Streaming not working in chrome version 89 , ue4 will crash when i access SignallingWebServer

General Feedback & Requests
1

this happends since google chrome version 89 and same thing in Microsoft Edge

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2

Does anyone had a fix or workaround for this?

3

this worked for me, chrome 97 !!!

so we edit webRtcPlayer.js under Config section

     this.cfg = parOptions.peerConnectionOptions || {};
     this.cfg.sdpSemantics = 'unified-plan';
     this.pcClient = null;
     this.dcClient = null;
     this.tnClient = null;

     this.sdpConstraints = {
       offerToReceiveAudio: 1,
       offerToReceiveVideo: 1
     };
     
     // Temporary hotfix for Chrome >=89
     const tempChromeInfo = navigator.userAgent.match( /Chrom(e|ium)\/([0-9]+)\./ );
     if ( tempChromeInfo )
     {
             const tempVersion = parseInt( tempChromeInfo[ 2 ], 10 );
             if ( tempVersion >= 89 )
             {
                     this.cfg.offerExtmapAllowMixed = false;
             }
     }

AND THEN

edit app.js

function setupWebRtcPlayer(htmlElement, config)
 {
 webRtcPlayerObj = new webRtcPlayer({ peerConnectionOptions: config.peerConnectionOptions });
 htmlElement.appendChild(webRtcPlayerObj.video);
 htmlElement.appendChild(freezeFrameOverlay);

 webRtcPlayerObj.onWebRtcOffer = function (offer)
 {
     if (ws && ws.readyState === WS_OPEN_STATE) {
         offer.sdp = offer.sdp.replace("a=extmap-allow-mixed\r\n", "")
         let offerStr = JSON.stringify(offer);
         console.log(`-> SS: offer:\n${offerStr}`);
         ws.send(offerStr);
     }
 };
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