add test

Author: nrc

tests/source/chains.rs

@@ -259,3 +259,8 @@ fn issue_2773() {
             None
         });
 }
+
+fn issue_3034() {
+    disallowed_headers.iter().any(|header| *header == name) ||
+        disallowed_header_prefixes.iter().any(|prefix| name.starts_with(prefix))
+}

tests/target/chains.rs

@@ -299,3 +299,8 @@ fn issue_2773() {
         None
     });
 }
+
+fn issue_3034() {
+    disallowed_headers.iter().any(|header| *header == name)
+        || disallowed_header_prefixes.iter().any(|prefix| name.starts_with(prefix))
+}