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`CORSConfig` maps `AllowedOrigins`, `AllowedHeaders`, and `MaxAge` into `cors.Options`, but doesn't map `ExposedHeaders` even though `rs/cors` supports it. This means there's no way to set `Access-Control-Expose-Headers` through receiver config — anyone who needs it has to write a custom middleware. This came up in jaegertracing/jaeger#8128 where the Jaeger UI needs specific headers exposed over CORS but has to work around this gap with a hand-rolled middleware. ### Changes - Add `ExposedHeaders []string` to `CORSConfig` - Wire it into `cors.Options` in `ToServer()` - Add test - Update README Signed-off-by: Rajneesh Chaudhary <[email protected]>
26 lines
1.1 KiB
YAML
26 lines
1.1 KiB
YAML
# Use this changelog template to create an entry for release notes.
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# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
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change_type: enhancement
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# The name of the component, or a single word describing the area of concern, (e.g. receiver/otlp)
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component: pkg/confighttp
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# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
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note: Add `ExposedHeaders` field to `CORSConfig` to allow setting the `Access-Control-Expose-Headers` response header.
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# One or more tracking issues or pull requests related to the change
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issues: [15119]
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# (Optional) One or more lines of additional information to render under the primary note.
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# These lines will be padded with 2 spaces and then inserted directly into the document.
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# Use pipe (|) for multiline entries.
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subtext:
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# Optional: The change log or logs in which this entry should be included.
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# e.g. '[user]' or '[user, api]'
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# Include 'user' if the change is relevant to end users.
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# Include 'api' if there is a change to a library API.
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# Default: '[user]'
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change_logs: [user, api]
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