1198727 - [e10s] View selected source triggers extended display of tab spinner

Status: RESOLVED WORKSFORME

(Core :: DOM: Content Processes, defect)

Description

[Jim Mathies [:jimm]]

This is fun one - 

str:
1) open telemetry.org
2) open a few other tabs to other pages
3) select SIMPLE_MEASURES_FIRSTPAINT
4) using the mouse, try to select the text 'SIMPLE_MEASURES_FIRSTPAINT'

you do select something, but there's no selection visible in the page

5) right click SIMPLE_MEASURES_FIRSTPAINT
6) you should get the option 'view selection source' in the context menu, select it.

result:
tab spinner displays in all tabs for about a minute.

The selection probably encompasses everything in the custom styled drop down.

Comment 1

[Mike Conley (:mconley) (:⚙️)]

What happens if you run these same steps with non-e10s? I would imagine we lock up the main browser process, no?

Comment 2

[Jim Mathies [:jimm]]

There's a delay in displaying the source, but it's only a second or so. The original report stated it took over a minute to display.