Unverified50% confidenceFactExact time
CORS is enforced by the browser, not by the server; the server merely declares the allowed origins, methods, and request headers via response headers.
1
Sources
50%
Confidence
Long-term
Relevance
10/18/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedFor non-simple requests (such as those containing custom headers or using PUT/DELETE methods), the browser sends a preflight request (using the OPTIONS method) to confirm whether the server allows the actual request.62% similarUnverifiedWhether HTTP is read-only or writable is not determined by the protocol method but by the server; many wikis, pastebins and admin panels accept GET requests to directly perform write operations.62% similarUnverifiedUsing requests to request a website directly often fails to get the desired content, because the server determines whether the request comes from a real human browser or an automated program; the solution is to add headers and pass the browser's User-Agent into the request as a dictionary.61% similarUnverifiedThe HTTP standard does not specify how a caller should resolve a conflict upon receiving a 409, which leaves automated clients without a basis for handling it.60% similarUnverifiedWebMCP does not have an independent client and server architecture and operates on the client side (within a specific web application in the browser)59% similar
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