1 files changed, 8 insertions, 0 deletions
diff --git a/cli/tools/registry/tar.rs b/cli/tools/registry/tar.rs
index 2dd160a0a..d24d8abaa 100644
--- a/cli/tools/registry/tar.rs
+++ b/cli/tools/registry/tar.rs
@@ -154,6 +154,14 @@ pub fn create_gzipped_tarball(
         source_parser,
         diagnostics_collector,
       )?;
+
+      let media_type = MediaType::from_specifier(&specifier);
+      if matches!(media_type, MediaType::Jsx | MediaType::Tsx) {
+        diagnostics_collector.push(PublishDiagnostic::UnsupportedJsxTsx {
+          specifier: specifier.clone(),
+        });
+      }
+
       files.push(PublishableTarballFile {
         path_str: path_str.clone(),
         specifier: specifier.clone(),