This issue was originally filed by @PaulAnnekov

1. Open "Developer tools" and "Sources" tab.
2. Set breakpoint in some file inside the package's folder in category with your site's domain, e.g "127.0.0.1:8081".
3. Set breakpoint in some file in category "(no domain)".

In first case this breakpoint will be ignored, in second one script will stop, so no issues.

As I understand breakpoints in category with your domain name works only for files that included directly with <script> tag. Breakpoints in files that was imported are ignored.

Plain list in "(no domain)" category is hard to use.

Dartium, chrome://version:
Google Chrome 38.0.2125.111 (Official Build 290379)
OS Linux
Blink 537.36 (@­183466)
JavaScript V8 3.28.71.17
Flash 15.0.0.189
User Agent Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.111 Safari/537.36
Command Line /opt/google/chrome/google-chrome --flag-switches-begin --flag-switches-end
Executable Path /opt/google/chrome/google-chrome
Profile Path /home/user/.config/google-chrome/Default
Variations d0bd833b-3f4a17df
f2d919bf-3f4a17df
e9f4800b-2d9ef0cc
76b48ab8-4866ef6e
c70841c8-4866ef6e
9e5c75f1-ed89c2b0
f79cb77b-3d47f4f4
24dca50e-837c4893
ca65a9fe-91ac3782
8d790604-9cb2a91c
4ea303a6-3d47f4f4
d8f57532-3f4a17df
61544484-ca7d8d80
b310ecc7-fcf6c09
9736de91-ca7d8d80
b2612322-f8cf70e2
5a3c10b5-e1cc0f14
244ca1ac-4ad60575
5e29d81-f23d1dea
3ac60855-486e2a9c
246fb659-bca011b3
f296190c-d0fe63d6
4442aae2-6bdfffe7
ed1d377-e1cc0f14
75f0f0a0-6bdfffe7
e2b18481-6e597ede
e7e71889-e1cc0f14
cbf0c14e-bf3e6cfd

Xubuntu 14.04.1 LTS

Attachment:
[Screenshot - 13.11.2014 - 22:58:07.png](https://storage.googleapis.com/google-code-attachments/dart/issue-21601/comment-0/Screenshot - 13.11.2014 - 22:58:07.png) (45.35 KB)