Real-World Bug Hunts 2: Frontend and Integration — Cache, CORS, Dates and Memory Leaks
Most frontend bugs are born not in the code but in the gap between browser and server. Five real cases: a white screen after deploy from a cached index.html and missing chunks, a CORS preflight failing only in production because of a trailing slash, a birth date shifting by a day across time zones, floating point money totals and memory growing from an observable never unsubscribed; with the decisive tool for each and the series' debugging checklist.
8 Nov 2026
·
15 min
·
6
