FirefoxDriver doesn't respond while the browser is doing specific javascript functions

[lukeis]

Originally reported on Google Code with ID 6223

What steps will reproduce the problem?
See attached script. Basically: chunked upload with plupload (javascript library).
- Select a big file
- Start the upload
- Try to do something with selenium during the upload

What is the expected output? What do you see instead?
I expect the webdriver to respond before all chunks are uploaded. A manual click on
the stop button works, the automated version does fail in Firefox. All calls will not
respond before the end of the upload.

Selenium version: 2.35.0 (python library), also remote with grid and node on 2.35.0

OS: Any (Browser running on Mac/Windows, test code & grid running on Linux(Ubuntu)/Mac
Browser: Firefox
Browser version: 23.0.1

The attached test file (simplified test page with simplified test code) you can run
with Python (2.7) with the selenium (2.35.0) python library install.
Run with:
python test.py <manual|Firefox|Chrome>. With manual the webserver just starts (port
8000), with Firefox  or Chrome (case sensitive) it will run the test with that browser.
With chrome the progress poll loop will happen a few times, will detect more then 10%
upload and will press the stop button. With Firefox the calls to selenium blocks (tested
with find_element_by_id, find_element_by_css_selector, find_element_by_xpath, execute_script).

Selenium node log part (with are actual test case):
09:53:51.547 INFO - Executing: [find elements: By.xpath: //div[@class="uploader-block"]/ul[@class="queue-view"]//p[@class="file-name"]]
at URL: /session/09bea2c3-c04d-41f0-aafb-00f149a67a2a/elements)
09:54:22.627 INFO - Done: /session/09bea2c3-c04d-41f0-aafb-00f149a67a2a/elements

Where you see the call block for 31 seconds which is about the time it takes to fully
upload the file.

Reported by paultjuh.org on 2013-09-06 11:15:50

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• Attachment: test.py

[lukeis]

Reported by barancev on 2013-10-20 17:49:14

• Labels added: Browser-Firefox

[lukeis]

Reported by luke.semerau on 2015-09-17 17:45:55

• Labels added: Restrict-AddIssueComment-Commit