My site is blocked by CORS policy: No 'Access-Control-Allow-Origin'

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I am currently using NodeJs on my site and this has been set to run on HTTP PORT 3000 and HTTPS PORT 2053. Please I will like these ports to be open permanently as I am getting errors on my site and not working due to these errors from the console. This is greatly impacting my site messages, alerts and all notifications and other functions.

Access to XMLHttpRequest at ‘https://www.umojami.com:2053/socket.io/?hash=d5c31f480504dddfdede&EIO=3&transport=polling&t=NeSencz’ from origin ‘https://www.umojami.com’ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.

Please, I have been struggling for weeks now on this and advised by the host to contact Cloudflare to resolve the issue as it is blocked from your end. Please, can you help me?

Thanks

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A post was merged into an existing topic: Blocked by CORS Policy