Auto merge of #14868 - bd339:iss14068, r=jdm

Fix loss of response type information in Fetch API

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Avoids mapping response types that are distinct according to [the spec](https://fetch.spec.whatwg.org/#concept-response-type) to fewer response types. Also updates test expectations to match that we now pass tests that check the response type.

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #14068

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- [X] There are tests for these changes

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components/script/dom/xmlhttprequest.rs

@@ -854,8 +854,10 @@ impl XMLHttpRequest {
             Ok(meta) => match meta {
                 FetchMetadata::Unfiltered(m) => m,
                 FetchMetadata::Filtered { filtered, .. } => match filtered {
+                    FilteredMetadata::Basic(m) => m,
+                    FilteredMetadata::Cors(m) => m,
                     FilteredMetadata::Opaque => return Err(Error::Network),
-                    FilteredMetadata::Transparent(m) => m
+                    FilteredMetadata::OpaqueRedirect => return Err(Error::Network)
                 }
             },
             Err(_) => {