1 files changed, 15 insertions, 1 deletions
diff --git a/app/assets/javascripts/content_editor/extensions/heading.js b/app/assets/javascripts/content_editor/extensions/heading.js
index 48303cdeca4..41903162ba5 100644
--- a/app/assets/javascripts/content_editor/extensions/heading.js
+++ b/app/assets/javascripts/content_editor/extensions/heading.js
@@ -1 +1,15 @@
-export { Heading as default } from '@tiptap/extension-heading';
+import { Heading } from '@tiptap/extension-heading';
+import { textblockTypeInputRule } from '@tiptap/core';
+
+export default Heading.extend({
+  addInputRules() {
+    return this.options.levels.map((level) => {
+      return textblockTypeInputRule({
+        // make sure heading regex doesn't conflict with issue references
+        find: new RegExp(`^(#{1,${level}})[ \t]$`),
+        type: this.type,
+        getAttributes: { level },
+      });
+    });
+  },
+});