When a Web Developer Notices Her Debugging Tools Suddenly Stop Working: Sam's Story

https://rapid-wiki.win/index.php/When_X_users_get_stranded_by_a_vague_JavaScript_error_-_what_happened_and_how_to_fix_it

Sam was on a deadline, coffee cooling in one hand, laptop warm in the other. She had a tricky bug: user sessions were randomly dropping on a production page. She opened the browser console, typed console.log(sessionId) and watched for the output