1305697 - Missing buttons via www.utest.com homepage

Status: RESOLVED DUPLICATE of bug 1308963

(Core :: CSS Parsing and Computation, defect, P1)

Description

[Ada [:adalucinet]]

Attachment: Screen Shot 2016-09-27 at 15.26.45.png

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:52.0) Gecko/20100101 Firefox/52.0
Build ID: 20160926030203

Steps to reproduce:

1. Navigate to https://www.utest.com/

Regression range:
Last good revision: 906c1f635c43ca24c685c7d1343d58eb0e4b0baf
First bad revision: bb8f2e88d99176437cdee6f4d50e6c5cd6a91f60
Pushlog:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=906c1f635c43ca24c685c7d1343d58eb0e4b0baf&tochange=bb8f2e88d99176437cdee6f4d50e6c5cd6a91f60

Looks like the following bug has the changes which introduced the regression:
https://bugzil.la/1294660



Actual results:

'Join as a lite user' and 'Join as a full user' buttons are missing.


Expected results:

The buttons are properly displayed.

Comment 1

[Alice0775 White]

Chrome Dev 55.0.2859.0 is also affected.

Seems the site problem.

Comment 2

[Ada [:adalucinet]]

Unfortunately, I'm not able to reproduce with latest available Chrome version (53.0.2785.116) for OS X 10.11.6 - http://imgur.com/IcWXpv2

Comment 3

[Michelle Funches - QA]

Reproducible
Version 	52.0a1
Build ID 	20160930030315
User Agent 	Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:52.0) Gecko/20100101 Firefox/52.0

Comment 4

[Xidorn Quan [:xidorn] UTC+10]

This is the same issue as bug 1301106 which we saw on Twitter.

I again think we should consider asking the spec to change given we are seeing more broken sites with that spec, especially given that WebKit and Blink have no plan to change their current behavior.

If people think the spec should keep as-is, we should file bugs to other engines to push them to align with the spec, rather than spend time asking each single site to fix over and over again.

Comment 5

[Mike Taylor [:miketaylr]]

Yeah.

Blink implemented the no-repeat (-webkit-)mask-repeat default value in https://bugs.chromium.org/p/chromium/issues/detail?id=628968, but it was reverted according to comment 11 of that bug due to https://bugs.chromium.org/p/chromium/issues/detail?id=645000.

So they reverted due to Twitter CSS (which has since been updated). I've asked for an update in their bug tracker... but my gut feeling is we should probably ask the spec to change for webcompat given that two engines are running into bugs.

Comment 6

[Astley Chen (inactive)]

CJ, is there any additional effort needed after bug 1308963 is resolved ? If not, probably we should set this bug as dup of bug 1308963.

Comment 7

[Astley Chen (inactive)]

Fixed along with bug 1308963. Set dup.

Comment 8

[Gerry Chang [:gchang]]

Hi :adalucinet, 
Since bug 1308963 was fixed, could you help verify if this issue is fixed as expected on the latest Nightly build? Thanks!

Comment 9

[Astley Chen (inactive)]

In bug 1294660, mask-image only enabled on nightly and aurora. Therefore, no need to uplift the fix in bug 1308963 to FF51 aurora since the symptom will be gone when FF51 goes to beta.

Mark flag status-firefox51 to disabled.

Comment 10

[Gerry Chang [:gchang]]

Per comment #9, no need to verify it. Clear ni.