1551182 - Page not load, 100% cpu (IsSelfEmpty, IsMarginZero, IsEmpty, FindLineClampTarget)

Status: RESOLVED DUPLICATE of bug 1551065

(Core :: CSS Parsing and Computation, defect)

Description

[gwarser]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0

Steps to reproduce:

Open https://www.pracuj.pl/praca/warszawa;wp?rd=15 on clean Nightly profile

Actual results:

Blank page, 100%cpu

Profiling https://perfht.ml/2LFAOzR

Expected results:

Page should load

Comment 1

[Alice0775 White]

Regression window:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=d94d1e2c6f436c33725709bf93c99f6930fd8e99&tochange=c2250a23fd66e3c812cb023c2d12f6f5e8d5a2f2

Regressed by:
c2250a23fd66e3c812cb023c2d12f6f5e8d5a2f2 Cameron McCormack — Bug 866102 - Implement -webkit-line-clamp. r=mats,emilio,dholbert

Comment 2

[Ed Lee :Mardak]

Preemptively marking dupe bug 1551065 as the fix there changes FindLineClampTarget

https://hg.mozilla.org/integration/autoland/rev/430b79a1444f

Comment 4

[Ed Lee :Mardak]

This seems to be the one using line-clamp:

<p class="offer-company">
<span class="offer-company__link-wrapper"></span>
<span class="offer-company__wrapper">
<a href="https://pracodawcy.pracuj.pl/company/4892154/profile" class="offer-company__name">Nowa Era sp. z o.o.</a>
</span>
</p>

.offer-company{
    font-size:.875rem;
    font-weight:400;
    margin-bottom:0;
    pointer-events:none;
    cursor:default;
    display:block;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
    text-overflow:ellipsis;
    line-height:1.5rem;
    max-height:3rem
}