1 files changed, 6 insertions, 0 deletions
diff --git a/components/script/dom/xmlhttprequest.rs b/components/script/dom/xmlhttprequest.rs
index 1d7c2bffd34..8d6716201af 100644
--- a/components/script/dom/xmlhttprequest.rs
+++ b/components/script/dom/xmlhttprequest.rs
@@ -828,6 +828,12 @@ impl XMLHttpRequestMethods for XMLHttpRequest {
 
     // https://xhr.spec.whatwg.org/#the-responsexml-attribute
     fn GetResponseXML(&self) -> Fallible<Option<Root<Document>>> {
+        // TODO(#2823): Until [Exposed] is implemented, this attribute needs to return null
+        //              explicitly in the worker scope.
+        if let GlobalRoot::Worker(_) = self.global() {
+            return Ok(None);
+        }
+
         match self.response_type.get() {
             XMLHttpRequestResponseType::_empty | XMLHttpRequestResponseType::Document => {
                 // Step 3