Why am I still seeing blocked requests due to CORS headers even after adding the standard access control allow origin middleware to our Express app?
Download run
Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Why am I still seeing blocked requests due to CORS headers even after adding the standard access control allow origin middleware to our Express app?
1 real search · 1 real-search pass
Express cors middleware official documentation preflight requests credentials origin errors MDN CORS troubleshootingGoogle ↗
OBSERVEDReason
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (1)
Classes come from the query-classifier (a local Laya model).
Searches and sources
ChatGPT1 real searches · gpt-6
Express cors middleware official documentation preflight requests credentials origin errors MDN CORS troubleshooting Google ↗
- Cross-Origin Resource Sharing (CORS) - HTTP · developer.mozilla.org
- Reason: Credential is not supported if the CORS header 'Access-Control-Allow-Origin' is '*' - HTTP · developer.mozilla.org
- Reason: CORS header 'Access-Control-Allow-Origin' missing - HTTP · developer.mozilla.org
- CORS errors - HTTP · developer.mozilla.org
- content/files/en-us/web/http/guides/cors/errors/index.md at main · mdn/content · github.com
- cors middleware · expressjs.com