WebDriver wait blocks javascript in Firefox

While waiting for a checkbox to reach a certain state, it was observed that the act of waiting (thread sleep) prevented the java script that was setting the checkbox from completing. It seems like this is the issue:
http://www.seleniumwebdriver.com/current-outstanding-issues/firefox-webdriver-blocks-because-of-ajax-call/
What is the solution?

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Accepted answers

Logan Mitchell

Sending an Escape character during the script deadlock will force the javascript to complete and allow normal execution of webdriver tasks.

All comments

Logan Mitchell

Sending an Escape character during the script deadlock will force the javascript to complete and allow normal execution of webdriver tasks.

Benjamin Fairchild

So you mean if I do this:
try
{
//lambda expression for searching.
//wait until checkbox is equal to the expected state
new WebDriverWait(driver, new TimeSpan(0, 0, timeout)).Until(lambdaFunct =>
{
if(browserName.ToLower().Equals("firefox"))
{
//this is a firefox hack due to an issue with selenium and firefox blocking if waiting on ajax calls
//I have no clue why this works, but it does.
checkbox.SendKeys(Keys.Escape);
}
return checkbox.Selected == expectedStateChecked;
});
return true;
}
catch(Exception e)
{
return false;
}
It stops the blocking? Excellent!

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