diff --git a/.changeset/sharp-rules-hide.md b/.changeset/sharp-rules-hide.md
new file mode 100644
index 00000000000..c4b5a4ef1f6
--- /dev/null
+++ b/.changeset/sharp-rules-hide.md
@@ -0,0 +1,5 @@
+---
+'codemirror-graphql': patch
+---
+
+tooltip a tag's click listener calls event.preventDefault() to stop navigating away from page
diff --git a/packages/codemirror-graphql/src/info.ts b/packages/codemirror-graphql/src/info.ts
index dedea07e170..4b57bf1fecd 100644
--- a/packages/codemirror-graphql/src/info.ts
+++ b/packages/codemirror-graphql/src/info.ts
@@ -299,6 +299,9 @@ function text(
       // want clicking the node to navigate anywhere.
       node.href = 'javascript:void 0'; // eslint-disable-line no-script-url
       node.addEventListener('click', (e: MouseEvent) => {
+        // Although an href of 'javascript:void 0' should never navigate away from the page,
+        //   that is not always the case: https://github.com/graphql/graphiql/issues/3565
+        e.preventDefault();
         onClick(ref, e);
       });
     } else {