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This is a filter which handles Cross-Origin Resource Sharing requests based on route or virtual host settings. For the meaning of the headers please refer to the pages below.
- https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS
- https://www.w3.org/TR/cors/
- v2 API reference
- This filter should be configured with the name envoy.cors.
Statistics
The CORS filter outputs statistics in the
Note
Requests that do not have an Origin header will be omitted from statistics.
| Name | Type | Description |
|---|---|---|
| origin_valid | Counter | Number of requests that have a valid Origin header. |
| origin_invalid | Counter | Number of requests that have an invalid Origin header. |
