# Responding to Errors **URL:** \ **Category:** Wowza Streaming Engine\ **Tags:** webrtc\ **Created:** [December 23, 2018, 1:59pm UTC](https://community.wowza.com/t/responding-to-errors/52535 "2018-12-23T13:59:10Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![HOU\_O\_YOUNG](https://avatars.discourse-cdn.com/v4/letter/h/f9ae1b/32.png) [@HOU\_O\_YOUNG](https://community.wowza.com/u/HOU_O_YOUNG)\ **Post date:** [December 23, 2018, 1:59pm UTC](https://community.wowza.com/t/responding-to-errors/52535/1 "2018-12-23T13:59:10Z")
Many web browser only support H.264 baseline profile when streamed over WebRTC, playback may not work: profile:Main * * * The above error occurs. Using webrtc ip Streamed camera. And https: //Wowza/webrtc/play/index.html The following errors occur during execution. Is it possible to change the profile to a baseline? I wonder how ---
**Author:** ![Alex\_C](https://avatars.discourse-cdn.com/v4/letter/a/bbe5ce/32.png) [@Alex\_C](https://community.wowza.com/u/Alex_C)\ **Post date:** [January 10, 2019, 7:56pm UTC](https://community.wowza.com/t/responding-to-errors/52535/2 "2019-01-10T19:56:07Z")
Hello @HOU O YOUNG Where is the source WebRTC stream coming from in to this play example? Please test with the Publish example we have here: [https://www.wowza.com/\_private/webrtc/](https://www.wowza.com/_private/webrtc/) Then test that stream in the play example. If the source stream is coming from Wowza Streaming Engine, first I would suggest trying the following change: In Application.xml -\> RTP container -\> rtpUseLowestH264Constraint -\> set to “true” Save the .xml file and restart the application in question. If that does not help then change in Application.xml -\> RTP container -\> rtpForceH264ConstraintValue -\> 128 or 224 or 240. Again, save the .xml and restart the application and do further testing. As far as using baseline and main. I believe the encoder should be using baseline by default. Regards, Alex C Wowza Support