fix(platform-server): harden platform location origin validation during SSR [v21 backport]#69186
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Update platform-server to use Angular 's native `RuntimeError` class. This aligns error throwing patterns in platform-server with other packages of the framework such as core, common, and platform-browser. For URL and host errors, the error messages are configured to return only the raw dynamic URL when `ngDevMode` is false (in production) to aid in troubleshooting without bloating production bundles.
JeanMeche
approved these changes
Jun 5, 2026
…ng SSR Add allowOriginChange option to ResolveUrlOptions in resolveUrl to enforce same-origin validation on resolved URLs. When set to false, it prevents any cross-origin changes (including HTTP/HTTPS URLs), aligning the emulated server-side platform location environment with browser security behavior. Refactor ServerPlatformLocation.replaceState to use allowOriginChange: false instead of manual comparison, hardening state change validation against cross-origin URLs. Add unit tests in url_spec.ts and platform_location_spec.ts for the origin validation changes.
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Description
Backport of #69184 to 21.2.x.
Align ServerPlatformLocation state modification behavior (replaceState and pushState) with the browser's HTML5 History API by enforcing same-origin validation.
To mitigate this:
allowOriginChangeoption toResolveUrlOptions. If false,resolveUrlvalidates that the resolved URL's origin matches the base URL's origin.ServerPlatformLocation.replaceStateto callresolveUrlwithallowOriginChange: false.Errorinstances in platform-server with framework-nativeRuntimeErrorinstances (codes 5700-5706) for standard errors.