devtool can not support: run as debug about devtool HOT 8 CLOSED

It's also worth mentioning that debugger statements aren't working as expected until the app is fully launched, leading me to think that the source is executed before the debugger is attached.

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Must have missed this during my first read-through of the readme:

When the DevTools window first opens, you may need to reload the browser for source maps and debugging to work correctly (related: electron#2379)

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most debug tools can add breakpoints to sum.js first, then I can select this file run as debug mode, so in this way I can debug the code easy.

Electron doesn't (yet) provide a way to inject break points like this.

Right now you will need to run the DevTool, set a break point, and then reload (Cmd + R or Ctrl + R) before the debugger and source maps work nicely.

It's also worth mentioning that debugger statements aren't working as expected until the app is fully launched, leading me to think that the source is executed before the debugger is attached.

@s-a Did you also have this issue in iron-node? If so how did you get around it?

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In ironNode I am waiting for DevTools opened event. After that I launch a debug session.
https://github.com/s-a/iron-node/blob/54fd8aa1cfb01d970ffd6d625cf81247b4f7510c/app/index.js#L100

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Thanks @s-a – it seems obvious now. 😄

@CMTegner Your issue should be fixed in 1.3.1; you no longer need to reload the page for debugger statement or source maps to work.

EDIT: It looks like sometimes it still isn't getting caught. Investigating...

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Just gave 1.3.1 a quick test, and during my – very limited – testing debugger statements seem to be working as expected. Great work @mattdesl!

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I just fixed up the previous commit so it is a bit more robust – the debugger should now be active by the time the app loads.

I also added a --break option to the CLI in 1.4.0 which injects a hidden debugger statement into the first line of your entry file, allowing it to "break on first run" like with node-inspector. This is particularly useful if you need to debug something that you can't just reload (i.e. the script depends on process.stdin which is only sent once).

Hopefully this issue is all cleared up, now. 😄

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yep~ sounds very nice! thanks a lot~~ 😄 👍

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