From e64cb2fbb7368bc0d45c46f927e705353e8c1882 Mon Sep 17 00:00:00 2001
From: lukasIO <mail@lukasseiler.de>
Date: Tue, 9 Aug 2022 12:43:38 +0200
Subject: [PATCH] Add fallback to unmunged sdp offer (#386)

* add fallback to unmunged sdp offer

* changeset
---
 .changeset/spotty-guests-type.md |  5 +++++
 src/room/PCTransport.ts          | 14 +++++++++++---
 2 files changed, 16 insertions(+), 3 deletions(-)
 create mode 100644 .changeset/spotty-guests-type.md

diff --git a/.changeset/spotty-guests-type.md b/.changeset/spotty-guests-type.md
new file mode 100644
index 000000000..7380bf9d4
--- /dev/null
+++ b/.changeset/spotty-guests-type.md
@@ -0,0 +1,5 @@
+---
+'livekit-client': patch
+---
+
+Add fallback to unmunged sdp offer
diff --git a/src/room/PCTransport.ts b/src/room/PCTransport.ts
index 96d6c4527..3e3beb480 100644
--- a/src/room/PCTransport.ts
+++ b/src/room/PCTransport.ts
@@ -134,10 +134,18 @@ export default class PCTransport {
       }
     });
 
-    offer.sdp = write(sdpParsed);
     this.trackBitrates = [];
-
-    await this.pc.setLocalDescription(offer);
+    const originalSdp = offer.sdp;
+    try {
+      offer.sdp = write(sdpParsed);
+      await this.pc.setLocalDescription(offer);
+    } catch (e: unknown) {
+      log.warn('not able to set desired local description, falling back to unmodified offer', {
+        error: e,
+      });
+      offer.sdp = originalSdp;
+      await this.pc.setLocalDescription(offer);
+    }
     this.onOffer(offer);
   }