[KongchangAI]
Unverified50% confidenceFactExact time

For 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.

1
Sources
50%
Confidence
Long-term
Relevance
8/17/2026
First Seen

Sources

Related Claims

Cite This Claim

Stable URI
https://kongchang.com/claim/762137
API
curl https://kongchang.com/api/v1/knowledge/claims/762137
MCP
get_claim(id=762137)