Clearing a false positive: my error guard matched too much
Its live-discovery feature launches a headed Chromium via Playwright to record real traffic. That only works where there's a display, so when someone runs the backend inside Docker (no X server), the launch fails. To make that failure friendly, I added a guard that catches the error and returns a clear 503 — "live discovery needs a headed browser; run the backend natively." Good idea.
- ▪Its live-discovery feature launches a headed Chromium via Playwright to record real traffic.
- ▪That only works where there's a display, so when someone runs the backend inside Docker (no X server), the launch fails.
- ▪To make that failure friendly, I added a guard that catches the error and returns a clear 503 — "live discovery needs a headed browser; run the backend natively." Good idea.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 4048282) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } shankar subramanian Posted on Jul 26 Clearing a false positive: my error guard matched too much #bugsmash #devchallenge #testing #playwright Project Overview I built TestFlow Agent — an open-source tool that turns plain-English test cases (or a live browser recording) into runnable Postman, Playwright, and JMeter tests. Its live-discovery feature launches a headed Chromium via Playwright to record real traffic.
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