Bing Maps CORP

Question

After enabling COEP and COOP on my server, Bing Maps no longer function as the response is missing appropriate HTTP Headers.

The following is seen in the Firefox browser console:

The resource at “https://www.bing.com/api/maps/mapcontrol?callback=initMapBing&key=[REDACTED]” was blocked due to its Cross-Origin-Resource-Policy header (or lack thereof). See https://developer.mozilla.org/docs/Web/HTTP/Cross-Origin_Resource_Policy_(CORP)

Documentation seems to indicate that bing.com would need to add the following HTTP Headers to that response:

access-control-allow-origin: *
cross-origin-resource-policy: cross-origin

My server includes the following on the page including the map:
cross-origin-embedder-policy: require-corp
cross-origin-opener-policy: same-origin

Answer 1

Hi Scott,

Have you written an App or are you talking about the Bing.com/maps website?

The CORS issue is usually because you are trying to access a service that is on a different domain. If you trace the error, do you find a domain mismatch? If you call https://sdk,virtualearth.net/api/maps/mapcontrol as documented at https://learn.microsoft.com/en-us/bingmaps/v8-web-control/creating-and-hosting-map-controls/creating-a-basic-map-control does the issue resolve?

Sincerely,

IoTGirl