Networking & Web
Send sample payloads through a controlled test endpoint.
DevToolbox will send the endpoint, POST method, the exact parsed JSON payload (2 bytes), and 0 listed custom headers to its server. The server will forward them to the endpoint. Browser cookies are never included.
DevToolbox will send the endpoint, POST method, the exact parsed JSON payload (2 bytes), and 0 listed custom headers to its server. The server will forward them to the endpoint. Browser cookies are never included.
Use only an endpoint you are authorized to test. POST is the default; PUT and PATCH support test endpoints that deliberately model those idempotent/update flows. Only method-preserving 307/308 redirects are followed; each one is revalidated and pinned before another request is sent. Other redirect responses are reported without replaying the payload.
Send bounded JSON test payloads to authorized public HTTPS webhook endpoints with explicit consent, SSRF-resistant routing, safe custom headers, and inert response previews.