Disable publisher offer with join in firefox (#1954)

Author: cnderrauber

.changeset/empty-roses-begin.md

@@ -0,0 +1,5 @@
+---
+'livekit-client': patch
+---
+
+Disable publisher offer with join in firefox

src/room/RTCEngine.ts

@@ -90,7 +90,7 @@ import { getTrackPublicationInfo } from './track/utils';
 import type { LoggerOptions } from './types';
 import {
   Future,
-  isCompressionStreamSupported,
+  isPublisherOfferWithJoinSupported,
   isVideoCodec,
   isVideoTrack,
   isWeb,
@@ -325,7 +325,7 @@ export default class RTCEngine extends (EventEmitter as new () => TypedEventEmit
 
       this.setupSignalClientCallbacks();
       let offerProto: SessionDescription | undefined;
-      if (!useV0Path && isCompressionStreamSupported()) {
+      if (!useV0Path && isPublisherOfferWithJoinSupported()) {
         if (!this.pcManager) {
           await this.configure();
           this.createDataChannels();
@@ -358,7 +358,7 @@ export default class RTCEngine extends (EventEmitter as new () => TypedEventEmit
       this.participantSid = joinResponse.participant?.sid;
 
       this.subscriberPrimary = joinResponse.subscriberPrimary;
-      if (!useV0Path && isCompressionStreamSupported()) {
+      if (!useV0Path && isPublisherOfferWithJoinSupported()) {
         this.pcManager?.updateConfiguration(this.makeRTCConfiguration(joinResponse));
       } else {
         if (!this.pcManager) {

src/room/utils.ts

@@ -794,3 +794,8 @@ export function extractMaxAgeFromRequestHeaders(headers: Headers): number | unde
 export function isCompressionStreamSupported() {
   return typeof CompressionStream !== 'undefined';
 }
+
+export function isPublisherOfferWithJoinSupported() {
+  // we have connectivity issue about publisher offer with join on firefox #1919
+  return isCompressionStreamSupported() && !isFireFox();
+}