feat: net.fetch() supports custom protocols (#36606)

docs/api/session.md

@@ -768,6 +768,10 @@ Limitations:
 * The `.type` and `.url` values of the returned `Response` object are
   incorrect.
 
+Requests made with `ses.fetch` can be made to [custom protocols](protocol.md)
+as well as `file:`, and will trigger [webRequest](web-request.md) handlers if
+present.
+
 #### `ses.disableNetworkEmulation()`
 
 Disables any network emulation already active for the `session`. Resets to