Uncaught (in promise) Error: Failed to fetch the conformance statement from "https://staging-fhir.ecwcloud.com/fhir/r4/FFBJCD/metadata". TypeError: Network request failed about client-js

[vlad-ignatov]

If you try loading those URLs in a browser window you will get back XML. That is because browsers send some accept headers by default. Otherwise you would get JSON, even if you don't send any accept header. Don't let that trick you into thinking that XML is the issue - in this case what you see is not what you get :)

Every FHIR server MUST support CORS. Otherwise it would be unusable (even if you didn't need to authenticate). You can't work around this from the client side and that is exactly the point of CORS - clients should be rejected unless server admins say they shouldn't.

Your only choice is to let them know that CORS must be enabled and perhaps send them that screenshot for reference.

[vlad-ignatov]

The client does NOT support XML but it sends and accept: application/json header on each request to tell the server how to respond. This seems to work fine with your server.

As the screenshot shows, the problem is not there. You just need to configure / modify your FHIR server to support CORS.

[msohaib308]

Issue is the XML response type

Anyway if i can handle on client side
Because FHIR server is owned by third party

[zamananjum0]

Is this resolve?
@msohaib308 Can you please guide me on this?

[msohaib308]

Hy @zamananjum0

Issue is not resolved yet
however they suggested to try implementation on backend side
Below is the email that i got from ECW Team