UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.84 Safari/537.36

Example URL:
badtab4.html in attachment

Steps to reproduce the problem:
1. Open badtab4.html in attachment
2. Change zoom level

What is the expected behavior?
At all zoom levels, there should be a red rectangle on each row (div.line) (5 rows in total).

What went wrong?
At zoom levels <=50%, 75%, 110%, 175%, 200%, 300%, the only lines that show a red box are:
- with white-space: pre, not pre-wrap
- with less than two TABs (&#9;) before the SPAN

At all the other zoom levels, each line has a red rectangle.

And lines with only one TAB before the SPAN (which itself contains a TAB) are fine.

Does it occur on multiple sites: N/A

Is it a problem with a plugin? No 

Did this work before? Yes I think it worked before Chromium 51, but I'm not 100% positive.

Does this work in other browsers? Yes 

Chrome version: 51.0.2704.84  Channel: n/a
OS Version: Linux nc052 4.6.2-1-ARCH #1 SMP PREEMPT Wed Jun 8 08:40:59 CEST 2016 x86_64 GNU/Linux
Flash Version:
 

Deleted: badtab4.html 664 bytes

badtab4.html 664 bytes View Download