# Setting WebRTC preview up

**URL:** <https://community.wowza.com/t/setting-webrtc-preview-up/47794>\
**Category:** Wowza Streaming Engine\
**Created:** [December 7, 2016, 10:50pm UTC](https://community.wowza.com/t/setting-webrtc-preview-up/47794 "2016-12-07T22:50:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Alexander\_Shcherbako](https://avatars.discourse-cdn.com/v4/letter/a/e79b87/32.png) [@Alexander\_Shcherbako](https://community.wowza.com/u/Alexander_Shcherbako)\
**Post date:** [December 7, 2016, 10:50pm UTC](https://community.wowza.com/t/setting-webrtc-preview-up/47794/1 "2016-12-07T22:50:37Z")

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Greetings, I’m going through the webrtc preview and I stuck at some steps:

1. The webrtc preview patch make me configure Wowza Streaming Engine to use SSL on port 443 by default. The chat app runs on nginx that uses port 443 for SSL too, so I moved Wowza Streaming Engine to virtual machine with ip=192.168.1.53. I couldn’t change nginx SSL port as chrome refuses to open the chat app (net::ERR\_SSL\_PROTOCOL\_ERROR). Is it OK to assign another SSL port for Wowza Streaming Engine?

2. The chat app tries to send POST request to Wowza Streaming E but fails every time because of net::ERR\_SSL\_PROTOCOL\_ERROR in chrome. In webrtc-const.js I configured SERVER\_URL as follows: const SERVER\_URL = “[https://192.168.1.53:1935/webrtc-session.json](https://192.168.1.53:1935/webrtc-session.json)”. Whatever I try I can’t obtain webrtc-session.json from Wowza Streaming Engine. Could you explain me if I’m correct or not.

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**Author:** ![Jason\_Tuchler](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/jason_tuchler/32/462_2.png) [@Jason\_Tuchler](https://community.wowza.com/u/Jason_Tuchler)\
**Post date:** [December 9, 2016, 9:50am UTC](https://community.wowza.com/t/setting-webrtc-preview-up/47794/2 "2016-12-09T09:50:04Z")

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Hello,

This was answered in a support case. You can use another port besides 443 to SSL Default Streaming. You will need to add the port number though to your SDP URL though:

e.g. wss://5555555555555.streamlock.net:8443/webrtc-session.json

Regards,

JasonT