javascript - How to disable a "Reload site? Changes you made may not be saved" popup for (python) selenium tes

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I am running automated (python) selenium tests on a chrome browser, and sometimes when a page is reloaded a popup appears on the screeen:

Is it possible to configure the chrome selenium browser in such a way, that this popup does not appear? If so, how to do that? Or are there other ways to supress this popup? Or to accept it?

I am running automated (python) selenium tests on a chrome browser, and sometimes when a page is reloaded a popup appears on the screeen:

Is it possible to configure the chrome selenium browser in such a way, that this popup does not appear? If so, how to do that? Or are there other ways to supress this popup? Or to accept it?

• javascript
• python
• selenium
• google-chrome
• onbeforeunload

Share Improve this question Follow edited Apr 9, 2019 at 11:47 undetected Selenium 193k4444 gold badges303303 silver badges378378 bronze badges asked Apr 9, 2019 at 7:12 AlexAlex 44.3k100100 gold badges298298 silver badges513513 bronze badges

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3 Answers 3

Sorted by: Reset to default 7

This popup with text as Reload site? Changes you made may not be saved is the implementation of onbeforeunload property of WindowEventHandlers

---

onbeforeunload

The onbeforeunload property of the WindowEventHandlers mixin is the EventHandler for processing beforeunload events. These events fire when a window is about to unload its resources. At this point, the document is still visible and the event is still cancelable.

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Solution

There are different strategies available to handle this popup.

• Chrome solution: Using --disable-popup-blocking through ChromeOptions():

  from selenium import webdriver
  
  options.add_argument("--disable-popup-blocking")
  driver=webdriver.Chrome(chrome_options=options, executable_path=/path/to/chromedriver')
  

• Firefox solution: Using dom.disable_beforeunload through FirefoxProfile():

  from selenium import webdriver
  profile = webdriver.FirefoxProfile()
  profile.set_preference("dom.disable_beforeunload", True)
  driver = webdriver.Firefox(firefox_profile = profile)
  

• Cross Browser solution: As a Cross Browser solution, you can disable this dialog invoking the executeScript() to set window.onbeforeunload as function() {}; and you can use the following solution:

  driver.execute_script("window.onbeforeunload = function() {};")
  

• JQuery based solution:

  $I->executeJS( "window.onbeforeunload = null" );
  

You can find a relevant discussion in How to handle below Internet Explorer popup “Are you sure you want to leave this page?” through Selenium

I know this doesn't answer the suppression part of the question, but..

Try this piece of code for accepting the popup:

driver.SwitchTo().Alert().Accept();

For java, you can usee the following code,

// Set the path to the ChromeDriver executable
System.setProperty("webdriver.chrome.driver", "path_to_chromedriver");

// Create ChromeOptions instance
ChromeOptions options = new ChromeOptions();

// Disable pop-ups
options.addArguments("--disable-popup-blocking");

// Create WebDriver instance
WebDriver driver = new ChromeDriver(options);

// Rest of your code...

Hope this helps. Thanks.

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