Wait until processing of jQuery has completed

AdditionalConditions.groovy

public static ExpectedCondition<Boolean> processingOfJQueryHasFinished() {
        new ExpectedCondition<Boolean>() {
            @Override
            Boolean apply(WebDriver driver) {
                (Boolean) ((JavascriptExecutor) driver).executeScript("return jQuery.active === 0;")
            }
        }
    }

python:

WebDriverWait(driver, 5).until(lambda d: d.execute_script("return jQuery.active === 0"))