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How to edit Cloud-Function API-Key Response-Header??

  • 1.  How to edit Cloud-Function API-Key Response-Header??

    Posted Fri January 07, 2022 09:45 AM
    Edited by Sunny G Fri January 07, 2022 11:11 AM

    Hello again smart people,

    API KEY SETUP:

    • I have an API-key connected to a serverless function (via Cloud Functions).
    • I use that API-key to call a Cloudant database from an external domain (https://example.com)
    • The API-call has a Request-Header (an "X-IBM-Client-Id", which was autogenerated when the Cloud-Function API-key was created).
    • Because the API call includes a Request-Header, the browser initiates a Preflight request:

    THE ISSUE:

    The Preflight request is rejected with the following error:

    • "Preflight Wildcard Origin Not Allowed - Access to fetch at 'https://service.us-east.apiconnect.ibmcloud.com/gws/apigateway/api/111111111111/db/' from origin 'https://example.com' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: The value of the 'Access-Control-Allow-Origin' header in the response must not be the wildcard '*' when the request's credentials mode is 'include'."

    In devtools, the Cloudant (Cloud-Function) Response Header does indeed show a Wildcard (*)

    • Access-Control-Allow-Origin: *

    ***

    MY QUESTION:

    How can I change the Cloud-Function API-Key Response-Header to this:

    so that the Preflight request will succeed?

    ***

    CONDITIONS

    • I already have CORS enabled on the Cloudant database, and have whitelisted the requesting domain ("https://example.com")
    • I already have CORS enabled for that Cloud-Function API key (however there is no option to whitelist a domain) <=== that is what I aim to affect.

    ***

    Thank you for your help.

    I am very determined to make this work.

    - Sunny G
    ------------------------------


  • 2.  RE: How to edit Cloud-Function API-Key Response-Header??

    Posted Thu January 20, 2022 10:33 AM
    Hi @Sunny G
    ​You may want to consider reposting this in the Cloud community instead as they may be better able to help you as this is targeted more towards IBM Cloud Functions: https://community.ibm.com/community/user/publiccloud/communities/communities/communities/community-home?CommunityKey=249657e6-a0c3-4528-9752-3bf1e5e03d74
    ​​Hope you get some answers!

    ------------------------------
    Jina K
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    Original Message