Selenium wait for Ajax content to load - universal approach

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Is there a universal approach for Selenium to wait till all ajax content has loaded? (not tied to a specific website – so it works for every ajax website)

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You need to wait for Javascript and jQuery to finish loading. Execute Javascript to check if jQuery.active is 0 and document.readyState is complete, which means the JS and jQuery load is complete.

public boolean waitForJSandJQueryToLoad() {
WebDriverWait wait = new WebDriverWait(driver, 30);
// wait for jQuery to load
ExpectedCondition<Boolean> jQueryLoad = new ExpectedCondition<Boolean>() {
@Override
public Boolean apply(WebDriver driver) {
try {
return ((Long)((JavascriptExecutor)getDriver()).executeScript("return jQuery.active") == 0);
}
catch (Exception e) {
// no jQuery present
return true;
}
}
};
// wait for Javascript to load
ExpectedCondition<Boolean> jsLoad = new ExpectedCondition<Boolean>() {
@Override
public Boolean apply(WebDriver driver) {
return ((JavascriptExecutor)getDriver()).executeScript("return document.readyState")
.toString().equals("complete");
}
};
return wait.until(jQueryLoad) && wait.until(jsLoad);
}
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