<![CDATA[Blocked by CORS Policy.(sovled)]]>When attempting to connect to my Colyseus server, I am met with the following error and I cannot figure out what to do about it.

"Access to XMLHttpRequest at 'http://server.colyseus.dev:2567/matchmake/joinOrCreate/my_room' from origin 'http://localhost' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request."

]]>http://discuss.colyseus.io/topic/537/blocked-by-cors-policy-sovledRSS for NodeFri, 10 Apr 2026 16:03:47 GMTWed, 01 Dec 2021 02:02:54 GMT60<![CDATA[Reply to Blocked by CORS Policy.(sovled) on Thu, 09 Dec 2021 13:39:56 GMT]]>When attempting to connect to my Colyseus server, I am met with the following error and I cannot figure out what to do about it.

"Access to XMLHttpRequest at 'http://server.colyseus.dev:2567/matchmake/joinOrCreate/my_room' from origin 'http://localhost' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request."

]]>http://discuss.colyseus.io/post/1654http://discuss.colyseus.io/post/1654Thu, 09 Dec 2021 13:39:56 GMT<![CDATA[Reply to Blocked by CORS Policy.(sovled) on Invalid Date]]>facing same issue. dev please help

]]>http://discuss.colyseus.io/post/1655http://discuss.colyseus.io/post/1655Invalid Date<![CDATA[Reply to Blocked by CORS Policy.(sovled) on Thu, 09 Dec 2021 13:39:26 GMT]]>Did you use a cors() middleware ?

read more:
https://discuss.colyseus.io/topic/538/游戏服务器与-cors-跨域资源共享

]]>http://discuss.colyseus.io/post/1658http://discuss.colyseus.io/post/1658Thu, 09 Dec 2021 13:39:26 GMT<![CDATA[Reply to Blocked by CORS Policy.(sovled) on Invalid Date]]>If you're using Arena, please use wss://server.colyseus.dev instead of ws://server.colyseus.dev:2567

]]>http://discuss.colyseus.io/post/1659http://discuss.colyseus.io/post/1659Invalid Date