* fix(rewrite): fix cname target rewrite for CNAME chains
This fix corrects the cname target rewrite to handle CNAME chains:
- Preserves only the CNAME records before matching the rule
- Rewrites only the CNAME target that matches the rule
- Includes all records from the re-resolved upstream response
Signed-off-by: hide <hide@hide.net.eu.org>
* docs(rewrite): document how answer records are handled in CNAME target rewrite
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* fix(rewrite): simplify slice append per staticcheck S1011
Signed-off-by: hide <hide@hide.net.eu.org>
* docs(rewrite): add extra line between code and paragraph
Signed-off-by: hide <hide@hide.net.eu.org>
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Signed-off-by: hide <hide@hide.net.eu.org>
Co-authored-by: hide <hide@hide.net.eu.org>
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