Alan Agius
49368c1859
Align ServerPlatformLocation state modification behavior (replaceState and pushState) with the browser's HTML5 History API by enforcing same-origin validation. In a browser environment, calling replaceState/pushState with a cross-origin URL throws a SecurityError. Previously, the emulated ServerPlatformLocation in platform-server silently allowed cross-origin state changes. If application code passed untrusted input to replaceState/pushState during SSR, this could cause the base URL to be changed, resulting in potential SSRF and credential leaks for relative HTTP requests. To mitigate this: 1. Add an `allowOriginChange` option to `ParseUrlOptions`. If false, `parseUrl` validates that the resolved URL's origin matches the base URL's origin. 2. Update `ServerPlatformLocation.replaceState` to call `parseUrl` with `allowOriginChange: false`.
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