Cors error while using customchat and messenger icon is not showing

[aarish-rajput]

I am trying to use customchat funtionality in my react but it is showing this error even though domain is whitelisted and public

web-chat/:1 Access to script at 'https://connect.facebook.net/en_US/sdk/xfbml.customerchat.js' from origin 'https://mysitename' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.Understand this errorAI xfbml.customerchat.js:1

Failed to load resource: net::ERR_FAILED

[VahanDrnoyan]

The same here:(

[seeden]

are you using it on http instead of https?