findElement hangs on a page with error log full of "Ignoring pending about:document-onload-blocker request"

[lukeis]

Originally reported on Google Code with ID 4757

Description: FF (v14, v15, v16) didn't time out and run infinitely.

Reproduce the issue: Selenium code in attachment.

Environment:
Selenium: 2.25.0
OS: Windows 7 and Linux

Have some Test-Reports:
FF14: https://saucelabs.com/tests/37e8613d9417485ab4edaae819de93ec
FF15: https://saucelabs.com/tests/cf9cb86e2d744a90a09074e9a96547ba
FF16 https://saucelabs.com/tests/9484057654fd4c9a8ef662de4d1b1984

Countercheck:
IE timed out as expected with 
org.openqa.selenium.TimeoutException: Timed out after 5 seconds waiting for presence
of element located by: By.xpath: //div[@class='tb-dropdown-body']//div[@class='no_items']

IE 9: https://saucelabs.com/tests/dc2f61554b9e4453a892cf35fdcbd7e8?action=fullscreen


History:
If you wonder about the guy on that webpage. It's actually not my issue - it's coming
from that thread: https://groups.google.com/forum/?fromgroups=#!topic/selenium-users/P-KM06gjeYY
and I managed to extract the problematic webpage. Don't ask me, why the WebApp was
providing that guy to me in that moment ...

Reported by michael.wowro@it-kosmopolit.de on 2012-11-09 18:02:12

---

- _Attachment: [PoojaTest.java](https://storage.googleapis.com/google-code-attachments/selenium/issue-4757/comment-0/PoojaTest.java)_

[lukeis]

at least the following functions show the same misbehaviour:

textToBePresentInElement
textToBePresentInElementValue
visibilityOfElementLocated

Reported by michael.wowro@it-kosmopolit.de on 2012-11-10 10:29:43

[lukeis]

Reported by barancev on 2012-11-13 08:52:05

• Labels added: Lang-Java

[lukeis]

It has nothing to the ExpectedConditions, simple findElement hands on this page.

A simplified reproduction scenario is (in groovy):

import org.openqa.selenium.*
import org.openqa.selenium.firefox.*

driver = new FirefoxDriver();
driver.get("http://it-kosmopolit.de/20121108153528/index.html");
Thread.sleep(2000)
println("checkpoint 1");
dropdown = driver.findElement(By.xpath("//div[@class='tb-dropdown-body']//div[@class='no_items']"))
println("checkpoint 2");

Reported by barancev on 2012-11-14 22:59:57

• Labels added: Browser-Firefox
• Labels removed: Status-Untriaged, Lang-Java

[lukeis]

I have encountered the same problem. Selenium 2.25.0 correctly throws a NoSuchElementException
under IE 9 and Chrome 23.0 when searching for a non-existent element by element ID.
Under FF17.0.1, it hangs indefinitely...I've waited a minute or two. I have a relatively
self-contained example (20 lines of code and a zip file containing the page) that I
can provide if it helps.

Reported by chris.l.merrill on 2012-12-17 19:30:56

[lukeis]

@chris.l.merrill: FF17 support was added in Selenium 2.27, please upgrade.

Reported by barancev on 2012-12-17 19:53:06

[lukeis]

Ahhh....my apologies.  I looked at http://seleniumhq.org/download/ for the latest version
and found only 2.25.  But I see now that I should have been looking at https://code.google.com/p/selenium/downloads/list


Thanks - I've tested and it 2.28 works as expected with FF17 :>

Reported by chris.l.merrill on 2012-12-17 20:39:05

[lukeis]

I run into the same issue too.. I think correcting the first download link (http://seleniumhq.org/download/)
would be a time saver for others.

Reported by culudamar on 2012-12-20 09:45:35

[lukeis]

Hi, I recently came across this thread because my Firefox is hanging when I call FindElement
or FindElements. By "hanging," I mean, Firefox remains on the same page, and then returns
the Elements I was looking for almost 5 minutes later. I updated to FireFox 17 and
Selenium 2.28.0, but I'm still having the same problem. Does this sound like it would
be related to what was addressed for FindElement recently? 

Reported by danielle.song@makerstudios.com on 2013-01-04 07:11:52

[lukeis]

I'm using Mac OS X 10.7.5 and with multiple versions of Firefox as well as uninstalling
and reinstalling I am able to reproduce something like this bug using find_elements_by_name.
My repro script is available at https://gist.github.com/anastasia11/0bdaac342ab01d3a8891

Reported by Nastia.Rubanik@deliveryhero.com on 2013-02-06 13:54:10