Restrict hosts to localhost for sidecar - #3579
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Implemented host filtering to restrict connections to `localhost` outside of development environments. Updated `Program.cs` to include `AddHostFiltering` and `UseHostFiltering`. Removed `AllowedHosts` from `appsettings.json` as it is now hardcoded. Updated `README.md` to clarify this behavior.
Keegan (keegan-caruso)
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Jean-Marc Prieur (jmprieur)
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Oct 29, 2025
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LTGM
Thanks Keegan (@keegan-caruso)
Kelly🌠 (kllysng)
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saurabhsathe-ms
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Restrict hosts
Description
Implemented host filtering to restrict connections to
localhostoutside of development environments. UpdatedProgram.csto includeAddHostFilteringandUseHostFiltering.Removed
AllowedHostsfromappsettings.jsonas it is now hardcoded. UpdatedREADME.mdto clarify this behavior.Fixes #3580