Selenium Headless Browser: Infinite Processing Pop-up After File Upload

Other Questions Headless Browser
1

I’m working on a C# project using Selenium with PhantomJS as a headless browser. I’ve got a file upload function that works, but I’m running into a weird issue. After the file uploads, a processing pop-up shows up and never goes away. It’s strange because when I use Chrome instead, the pop-up only sticks around for a split second.

Here’s a simplified version of my code:

public void UploadFile(string fileType, string filePath)
{
    if (fileType == "Exchange Rates")
    {
        var phantomDriver = (PhantomJSDriver)_browser;
        phantomDriver.ExecutePhantomJS($"this.uploadFile('input[type=file]', '{filePath}');");
    }
    else
    {
        throw new ArgumentException("Invalid file type");
    }
}

Has anyone else run into this problem with PhantomJS? Any ideas on how to make the pop-up disappear or at least not hang around forever? I’m stumped!

2

hey man, i’ve had similar issues with phantomjs. it’s kinda buggy tbh. have u tried using chrome headless instead? way more reliable in my experience. if u gotta stick with phantomjs, maybe try adding a wait after the upload? like:

driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(10);

might help get past that annoying popup. good luck!

3

I’ve encountered similar issues with PhantomJS in the past. The infinite processing pop-up might be due to PhantomJS not fully supporting modern web technologies or JavaScript execution.

One workaround I’ve found effective is to use a wait strategy after the file upload. Try adding an explicit wait for the pop-up to disappear or for a specific element that appears after successful processing. Something like:

WebDriverWait wait = new WebDriverWait(_browser, TimeSpan.FromSeconds(30));
wait.Until(ExpectedConditions.InvisibilityOfElementLocated(By.Id("processingPopup")));

If that doesn’t work, you might want to consider switching to a more modern headless browser solution like Chrome or Firefox in headless mode. They tend to have better compatibility with current web standards and JavaScript execution.

Alternatively, you could try using Selenium’s JavaScript executor to manually close the pop-up after a set timeout if it persists longer than expected. This approach isn’t ideal but might serve as a temporary fix while you investigate the root cause.

4

I’ve dealt with similar headaches using PhantomJS. It’s notorious for quirks like this. Have you considered switching to a more modern headless browser? Chrome or Firefox in headless mode are solid alternatives that typically handle these scenarios better.

If you’re set on sticking with PhantomJS, you might try injecting some JavaScript to force-close the popup after a delay. Something like:

phantomDriver.ExecuteScript(“setTimeout(function() { document.querySelector(‘.popup-class’).style.display = ‘none’; }, 5000);”);

This isn’t an elegant solution, but it might get you unstuck. Just be cautious about potential side effects of artificially closing UI elements.

Ultimately, migrating away from PhantomJS might save you headaches in the long run. It’s not actively maintained anymore, which leads to compatibility issues with modern web technologies.