Update app.py

app.py

@@ -122,6 +122,9 @@ def format_citation_html(url, fragment_text, author, year, scc_hash):
     full_url = f"{url}#:~:text={encoded_fragment}"
     return f'<a href="{full_url}" data-hash="{scc_hash}">{author}, {year}</a>'
 
+def check_for_fragment(url):
+    return '#:~:text=' in url
+
 def copy_to_clipboard_js(text, button_id):
     """Generate JavaScript for copying text to clipboard"""
     return f"""