Show sourcemaps in Chrome network tab
This is the result of a change that was mentioned here (perhaps not directly as a solution to this ticket, but discussed here):https://bugs.chromium.org/p/chromium/issues/detail?id=362913
The basic thinking is that source maps aren't actually part of the regular page resources, and the goal of the network pane is to show you what a normal page load would involve. So, bottom line: no, there is no way to force the maps to load.