CORS-tester

Test CORS-hoder for enhver URL. Sjekk Access-Control-Allow-Origin, metoder og hoder.

URL aa teste

Origin-hode

Foresporselsmetode

Gratis CORS-tester Online

Skriv inn en URL og origin for aa teste CORS-hoder direkte fra nettleseren.

Slik tester du CORS-hoder

Skriv inn URL-en
Sett Origin-hodet
Velg HTTP-metode
Klikk paa "Test CORS"

Funksjoner

Test enhver URL for CORS
Send preflight OPTIONS-foresporsel
Se Access-Control-Allow-Origin
Sjekk credentials-stotte
Nettleserbasert CORS-test

Ofte stilte sporsmal

Hva er CORS?

CORS er en sikkerhetsmekanisme som lar en nettside be om ressurser fra et annet domene.

Hva er en preflight-foresporsel?

En OPTIONS-foresporsel sendt av nettleseren for visse cross-origin-foresporsler.

Hva betyr Access-Control-Allow-Origin?

Denne hoden angir hvilke origins som faar tilgang til ressursen.

Hvorfor blokkeres CORS-foresporselen min?

Foresporsler blokkeres naar serveren ikke inkluderer Access-Control-Allow-Origin.

Kan jeg teste CORS i nettleseren?

Ja. Dette verktooyet sender foresporsler direkte fra nettleseren.

Relaterte verktoy

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How to Use

Enter the API endpoint URL to test
Select HTTP method and add headers if needed
Click Test to send the CORS preflight request
Review the CORS headers in the response

Common Use Cases

Debugging CORS errors in APIs
Verifying server CORS configuration
Testing preflight request handling
Checking allowed origins and methods

Frequently Asked Questions

What is CORS?

CORS (Cross-Origin Resource Sharing) is a security mechanism that controls how web pages can request resources from a different domain.

Why am I getting CORS errors?

The server must include proper Access-Control-Allow-* headers. Without these, browsers block cross-origin requests for security.

Can I fix CORS on the client side?

No. CORS must be configured on the server. Client-side workarounds like JSONP are outdated and insecure.