Open Bug 1468567 Opened 3 years ago Updated 2 years ago

URL is not always clickable. Sometimes clickable after page reload

Categories

(Core :: DOM: Core & HTML, defect, P3)

60 Branch
defect

Tracking

()

UNCONFIRMED

People

(Reporter: fabstz-it, Unassigned)

Details

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0
Build ID: 20180522154149

Steps to reproduce:

Go to https://www.lemonde.fr/sncf/
On the right side of the page, there is a box titled "Les plus partagés"
In this box there are different links to other articles. Try to click on one of the links.



Actual results:

Sometimes the links are not clickable (although the mouse pointer show it could be)
Sometimes they are (although the mouse pointer show it could be)
To be able to reproduce, you may need to reload the page one or more times until this happens to you.

I also faced something similar on another website (which requires to be logged in, so I can't provide you that 2nd test case)

This has been tested with ESR 60.0.1 under linux, with all extensions disabled.



Expected results:

URL should be clickable without having to reload page
> Sometimes the links are not clickable (although the mouse pointer show it could be)

Cannot reproduce. Does this also happen with a clean user profile? Any errors shown in the network tab of the Developer tools?
Well, the problem might be a bit different than what I stated originally.
By playing a little bit with the network tab from developer tools, I noticed the links become clickable only when the page has been completely loaded. Fully loading this page may sometimes take more than 30 seconds (depending on the response time of some "foreign" domains)

(Done with a clean profile)
lemonde.fr server performance (and their order of loading elements) does not sound like something that Firefox could influence, or what is expected from Firefox in this ticket?
Flags: needinfo?(fabstz-it)
Well, I thought that the link is an anchor <a href=...> but it isn't. If it had been an anchor I would have expected it to be clickable as soon as that part of the HTML is read, without having to wait for the full loading of the page and its references. But since it is not, maybe there is some obscure reason that the page behaves that way. My knowledge of the way pages are designed & loaded may be outdated nowadays. :)

However in the 2nd test case I mentioned there is a <a href> in the HTML. When in safe mode, the <a href> is not clickable (and the mouse pointer doesn't change), while when in a clean profile or in opera, it can be clicked. I would have expected it to be clickable. For me there is an issue, but my knowledge is too limited to figure out where it is. 

In addition, for that 2nd case I noticed that if I disable all CSS for that page (with Web Developer extension) and then reenable the CSS, then the link suddenly can be clicked.

That page needs to be logged in (it is my ISP) and contains personal information. My ISP tells me to use another browsers if it doesn't work with Firefox.
Is there anything that I can do to help you figure out that bug (I don't want to make my credentials or personal data that is on that page public) ?
> In addition, for that 2nd case I noticed that if I disable all CSS for that
> page (with Web Developer extension) and then reenable the CSS, then the link
> suddenly can be clicked.

Actually that used to happened, but is not always the case :/
Flags: needinfo?(fabstz-it)
I couldn't reproduce this issue on 

User Agent 	Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0

However placing this under Core: DOM so someone can look into it. Thanks!
Component: Untriaged → DOM
Product: Firefox → Core
Priority: -- → P3
Component: DOM → DOM: Core & HTML
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