Are you using remote debugging? Why do you mention websocket?

if there are too many rows

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in a compiled browser, both debuggers close when the file is opened.
https://www.google.ru/chrome/browser/canary.html

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Reporter@ - Thanks for filing the issue...!!

Could you please provide a sample webpage/test file to test the issue from TE-end.
This will help us in triaging the issue further.

Thanks...!!

https://drive.google.com/open?id=1F-Iln5p2GNjIxDpXFQpcavVGeeTEo1Kc

Thank you for providing more feedback. Adding requester "krajshree@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

1. Limit the number of pixels in all browsers, it is better to align the scroll bar to line numbers.
2. If you insert large code into the console, the browser closes

Able to reproduce the issue on Windows 10, mac 10.12.6 and Ubuntu 14.04 using chrome beta version #64.0.3282.24 and latest canary #65.0.3298.3. But the issue is not reproducible on reported version #63.0.3239.84

Bisect Information:
=====================
Good build: 64.0.3269.0    Revision(516552)
Bad Build : 64.0.3270.0    Revision(516942)

Change Log URL: 
https://chromium.googlesource.com/chromium/src/+log/16b84d67c1349f534233cecefc332cf94387542a..792e482212d3eace2f24a1975a339bbdc73d1973

From the above change log suspecting below change
Change-Id: I1a0e18748db9247947444a0cd0b8fa9233152cbd
Reviewed-on: https://chromium-review.googlesource.com/754511

einbinder@ - Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner.
Note: Adding label RBS as it seems to be a recent regression. Please feel free to remove the same if not appropriate.

Thanks...!!

The patch in question expanded the JavaScript compiler feature to more kinds of files, so that's probably why it showed up from the bisect.

We don't need to be compiling 48mb files, but it is interesting that it crashes. @kozy any thoughts?

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/459a4d3aa0dd725e3edd1b85740017c59b65aea3

commit 459a4d3aa0dd725e3edd1b85740017c59b65aea3
Author: Joel Einbinder <einbinder@chromium.org>
Date: Wed Dec 20 01:53:02 2017

DevTools: Dont compile large files

Compiling very large files (40mb) will crash DevTools

Bug:  795363 
Change-Id: I15108f3cc6b09daa3501782626dee734e3e3f049
Reviewed-on: https://chromium-review.googlesource.com/835416
Reviewed-by: Andrey Lushnikov <lushnikov@chromium.org>
Commit-Queue: Joel Einbinder <einbinder@chromium.org>
Cr-Commit-Position: refs/heads/master@{#525221}
[modify] https://crrev.com/459a4d3aa0dd725e3edd1b85740017c59b65aea3/third_party/WebKit/Source/devtools/front_end/sources/JavaScriptCompilerPlugin.js

Verified the fix on Mac 10.12.6, Win-10 and Ubuntu 14.04 using latest chrome version #65.0.3309.0 as per the comment #0 and #7.
Attaching screen cast for reference.
Observed that loading and debugging a large script happened without any crash.
Hence, the fix is working as expected. 
Adding the verified labels.

Thanks...!!

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einbinder@, seems like we need to merge the above fix (c#12) to M64 branch: 3282 if it's really safe?

einbinder@/kozy@, can you please comment on c#14?

kozy@ Ping! This issue is marked as RB-Stable, could you please let us know is there any latest update available on this issue?

Thanks!

We should merge @einbinder's CL.

This bug requires manual review: We are only 0 days from stable.
Please contact the milestone owner if you have questions.
Owners: cmasso@(Android), cmasso@(iOS), kbleicher@(ChromeOS), abdulsyed@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/dfba45ece8919a12d5aa1a9eb010cebd9439d0e0

commit dfba45ece8919a12d5aa1a9eb010cebd9439d0e0
Author: Alexey Kozyatinskiy <kozyatinskiy@chromium.org>
Date: Mon Jan 22 07:12:14 2018

DevTools: Dont compile large files

Compiling very large files (40mb) will crash DevTools

TBR=einbinder@chromium.org

(cherry picked from commit 459a4d3aa0dd725e3edd1b85740017c59b65aea3)

Bug:  795363 
Change-Id: I15108f3cc6b09daa3501782626dee734e3e3f049
Reviewed-on: https://chromium-review.googlesource.com/835416
Reviewed-by: Andrey Lushnikov <lushnikov@chromium.org>
Commit-Queue: Joel Einbinder <einbinder@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#525221}
Reviewed-on: https://chromium-review.googlesource.com/877825
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/branch-heads/3282@{#564}
Cr-Branched-From: 5fdc0fab22ce7efd32532ee989b223fa12f8171e-refs/heads/master@{#520840}
[modify] https://crrev.com/dfba45ece8919a12d5aa1a9eb010cebd9439d0e0/third_party/WebKit/Source/devtools/front_end/sources/JavaScriptCompilerPlugin.js

I would like to check why inspector is crashing on attempt to compile 48 Mb script so I  will leave this issue open but removed release block stable since with fix we do not compile big scripts in DevTools any more.

Verified the fix on Mac 10.12.6, Win-10 and Ubuntu 14.04 using latest chrome beta version #64.0.3238.113.
Attaching screen cast for reference.
Observed that loading and adding breakpoints to a large script doesn't crash devtools.
Hence, the fix is working as expected. 
Adding the verified labels.

Thanks...!!

Deleted: 795363.mp4 2.6 MB

	795363.mp4 2.6 MB View Download

Still not working for files that are a little below 1048576 characters limit (it's crashing like before). I dont think this fix is acceptable. We should find core reason why It's crashing.