source maps interpretation inconsistent

[cdaringe]

• VSCode Version: Version 1.8.1 (1.8.1)
• OS Version: osx 10.11.6

problem statement

• source maps are only periodically honored, based on compiled content.

discussion

• i confess, this may be an issue with babels sourceMap output, but i'm still debugging that. i figured i'd post this in advanced in case there is existing visibility or ideas people might have.

example

1. observe a compile->test->debug session, watch sourceMaps not be honored
2. add a debugger statement. observe another compile->test->debug session, watch sourceMaps be honored

Steps to Reproduce:

1. see https://github.com/cdaringe/babel-vscode-source-map-woes

[cdaringe]

this was working per intent in the same code base as shown over in the screen cast at facebook/create-react-app#1360

gotta🚶 for a bit. maybe it will come to me :)

[roblourens]

Not exactly sure what's happening in your gif, but the test repo works fine for me. I'm using vscode insiders, so maybe something is fixed there now.