User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:77.0) Gecko/20100101 Firefox/77.0

Steps to reproduce:

Now that sourcemaps are somewhat working again:

Place breakpoint in sourcemapped source.

Step through a few times.

Actual results:

The debugger switches to the original, non sourcemapped source which is not highlighted and is just a giant file. See screenshot. It switches to vendor.js instead of staying in the original file (tab next to it).

Expected results:

Keep stepping through the sourcemapped source code.

FF dev edition 77.0b3 (64-bit)

OSX 10.15.4 (19E287)

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.

Forwarding to the devtools component to be investigated.

Would you be able to create a reproducible example? Sourcemap issues are extremely hard to diagnose without an example unfortunately since they vary so much depending on the particular build process or tooling.

Clear a needinfo that is pending on an inactive user.

Inactive users most likely will not respond; if the missing information is essential and cannot be collected another way, the bug maybe should be closed as INCOMPLETE.

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