Angular: v21.2.9 Release

core

| Commit | Description | | -- | -- | | | escape forward slashes in transfer state to prevent crawler indexing |

http

| Commit | Description | | -- | -- | | | add CSP nonce support to JsonpClientBackend | | | Don't on Passthru outside of reactive context |

platform-server

| Commit | Description | | -- | -- | | | prevent SSRF bypasses via protocol-relative and backslash URLs |

router

| Commit | Description | | -- | -- | | | normalize multiple leading slashes in URL parser |