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Network header missing in Zipy
Why can't I see all the network request headers in the Dev Tools section?
Please verify that the server at your end, has listed the headers with the
Access-Control-Expose-Headersheader. The response headers should have this header listed along with other headers.
In case of a cross-origin request, this header allows a server to indicate which response headers should be made available to scripts running in the browser.