Blazor WASM Client and Server CORS Error .Net6

Najim 0

when i use in the Blazor WASM Client the Code

var client=new HttpClient(); var xyz=client.GetAsync(URL);

i got a CORS Error.

when i add an image with the URL i got also the same Error

<img src="@URL" />

I try it also in the API. On Localhost i got my httpclient response. When i upload it on my server i got a timeout Message.

Thank you for your support?

AgaveJoe 28,371 Reputation points

2024-07-31T16:50:00.7433333+00:00

CORS Cross-Origin Resource Sharing is a browser security feature. The browser does not allow processing an HTTP response from an origin that did not create the original web page loaded in the browser unless CORS headers exist in the response. Therefore, the server must be configured to return the CORS headers. For your application the server is the API. Did you enable CORS in the API application?

https://learn.microsoft.com/en-us/aspnet/core/security/cors?view=aspnetcore-8.0

General CORS information

https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS

https://developer.mozilla.org/en-US/docs/Glossary/Origin
Brando Zhang-MSFT 3,691 Reputation points Microsoft Vendor

2024-08-01T13:36:23.1+00:00

How you host your application inside the server? Did the url you have used to get the image is not the same domain? Besides, could you please share the image server's program.cs codes which is related with the CORS to let us check?

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