WebSocket Protocol Issue When Upgrading

Updated August 14, 2017 20:16

When upgrading your Episerver CMS UI to the latest versions, you may run into a websocket protocol error. This article provides links on this change and how to resolve the issue.

can't establish a connection to the server at wss://yoursite.com/EPiServer/Shell/socket/endpoint/.
socket = new WebSocket(this._path);

Resolution

Below are some resources for what this change is and how to resolve issues when upgrading.

http://world.episerver.com/documentation/Items/Developers-Guide/Episerver-CMS/9/User-interface/websocket-support/

http://www.iis.net/learn/get-started/whats-new-in-iis-8/iis-80-websocket-protocol-support

http://world.episerver.com/blogs/Eric-Pettersson/Dates/2016/2/fixing-the-websocket-protocol-support-issue-when-upgrading-to-episerver-ui-9-4-0/

WebSocket Protocol Issue When Upgrading

Resolution

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