What is the best way to handle CORS preflight caching when your API Gateway sits in front of a distributed microservices mesh?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What is the best way to handle CORS preflight caching when your API Gateway sits in front of a distributed microservices mesh?
3 real searches · 1 real-search pass
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 (3)
Classes come from the query-classifier (a local Laya model). 3 of 3 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT3 real searches · gpt-6
MDN CORS preflight request Access-Control-Max-Age Vary Origin API Gateway CORS caching Google ↗
AWS API Gateway CORS preflight OPTIONS caching Vary Origin documentation Google ↗
Envoy CORS filter preflight max age documentation Google ↗
- CORS · envoyproxy.io
- Configuring CORS on Amazon API Gateway APIs · aws.amazon.com
- Access-Control-Max-Age header - HTTP · developer.mozilla.org
- Preflight request - Glossary · developer.mozilla.org
- Cross-Origin Resource Sharing (CORS) - HTTP · developer.mozilla.org
Queries
3 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
MDN CORS preflight request Access-Control-Max-Age Vary Origin API Gateway CORS caching OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
AWS API Gateway CORS preflight OPTIONS caching Vary Origin documentation OBSERVED | Google ↗ AI Mode ↗ | — | Instruction | — | — | 1x of 1 | |
Envoy CORS filter preflight max age documentation OBSERVED | Google ↗ AI Mode ↗ | — | Instruction | — | — | 1x of 1 |