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Enabling CORS not working in AEM Cloud

Community Advisor
Community Advisor

I have enabled CORS for a specific domain and supportsCredentials as true.Below screenshot from AEM dev instance config



I have also added CORS headers in dispatcher - clientheaders.any file



However, request to AEM server still throws CORS error and there are no response headers

Chrome Dev Tools gives this error:

Access to fetch at '' from origin '' has been blocked by CORS policy: Request header field authorization is not allowed by Access-Control-Allow-Headers in preflight response.


So I explicitly added headers in supportedheaders as below:


Still getting the same issue.

Firefox preflight information below:



Sling Referrer Filter Config:



Now the CORS issue is resolved but it gives 403 Forbidden (other then GET calls). I read few articles and it mentioned to remove POST method from Sling Referrer Filter , I removed it but no difference

Another post mentions to remove POST from CSRF filter config. I don't think it's optimal to remove these methods from these configs. Please suggest a solution and why the access-control-allowed-methods header is not able to take care of this



@Jorg_Hoh @kautuk_sahni  Can you please tag Jorg_Hoh for me as I couldn't find him? Please also route it/ get it some attention from relevant folks in Adobe.

7 Replies
Community Advisor
Community Advisor

Hi @shelly-goel 


Can you please try whitelisting this AEM server in the receiving server to resolve this issue?



Kiran Vedantam.


Community Advisor
Community Advisor

Hi @shelly-goel,

Could you please confirm if you have allowed the origin(via Allow hosts or Allow Regexp Host) in Apache Sling Referrer Filter too ?

Community Advisor
Community Advisor
Added Sling Referrer Filter config as well but not of much help
Community Advisor
Community Advisor

If you are getting same CORS error as before, try adding logger entry for com.adobe.granite.cors with Debug level and try accessing again to see if it provide details of why it was denied.

Level 9
Level 9

If you are trying to access the other endpoints from AEM, then it would requie to whitelisting of AEM cloud url from other endpoint side.