Developer Tools Hang on Breakpoint during onblur

UNCONFIRMED
Unassigned

Status

()

Firefox
Developer Tools: Debugger
P2
normal
UNCONFIRMED
2 years ago
a year ago

People

(Reporter: Eric Brandel, Unassigned)

Tracking

47 Branch
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

Attachments

(1 attachment)

(Reporter)

Description

2 years ago
Created attachment 8762087 [details]
proof of concept

User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36

Steps to reproduce:

Adding a breakpoint in an onblur event causes the current tab to become unresponsive (unable to click anything in the tab, including the Click To Resume (play) button). When the tab and/or browser loses focus, the tab will then become responsive again.

In the attached example, adding a breakpoint at line 10 exhibits the behavior.


Actual results:

The browser tab hangs.


Expected results:

The browser tab should not hang.
(Reporter)

Updated

2 years ago
Component: Untriaged → Developer Tools: Debugger
At first glance, this sounds like a nested event loop problem.
Priority: -- → P2
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