In a recent project, I made use of Javascript Sourcemaps. Unfortunately, Chrome decided not to play along nicely by caching the maps, resulting in many headaches while debugging. Save yourself some headache, and when you experience this caching issue, simply right click in the network pane and click ‘Clear Browser Cache‘.

An alternative approach would be to right click on the refresh button and select the ‘Empty Cache and Hard Reload‘ button (which is only available when the inspector is open).