Disabling JavaScript for a particular page using Selenium:

Question

Disabling JavaScript for a particular page using Selenium:

My current challenge involves navigating to a webpage, locating a link to another page within it, and proceeding to that link without using javascript.

One approach I've considered involves the following method:

options = Options()
options.add_experimental_option("prefs", {
    "profile.managed_default_content_settings.javascript": 2
})

However, this method disables javascript for all pages, which is not ideal. Creating multiple driver instances and switching between them proves to be too time-consuming and resource-intensive.

Do you have any suggestions on how to selectively disable javascript on a specific page?

javascript python-3.x selenium google-chrome selenium-chromedriver

Answer 1

Answer №1

If you're looking for a solution using Java, one approach is to create a custom WebDriver class that can simulate toggling javascript on and off. This can be particularly useful in Chrome settings.

One way to start is by saving the current page URL so the driver knows where to return after toggling javascript. Keeping track of the current javascript state is also important - if it differs from the desired state, the script can proceed with toggling. The button for toggling javascript is typically located at the middle of the screen, with a noticeable radius. While the X axis is straightforward to handle, the Y axis may require some approximation but should work effectively in most cases.

Here is a sample implementation:

public class IWebDriver implements WebDriver {

     private boolean enableJavascript;
     private WebDriver driver;

     public IWebDriver() {
         this.enableJavascript = true; // Javascript is initially enabled
         this.driver = new ChromeDriver(); // Using ChromeDriver
     }

     public void setEnableJavaScript(boolean enable) throws Exception {
         String currentUrl = getCurrentUrl(); // Save current page URL

         if (this.enableJavaScript != enable) {
             this.driver.navigate().to("chrome://settings/content/javascript");
             Dimension d = driver.manage().window().getSize();
             int x = d.getWidth() / 2;
             int y = (int) ((float) d.getHeight() * 0.123f);
             Actions actions = new Actions(this.driver);
             actions.moveByOffset(x, y).click().build().perform();
        
             // Toggle javascript state
             this.enableJavaScript = !this.enableJavaScript;
         }

         this.driver.navigate().to(currentUrl); // Return to original URL
     }

     public boolean isEnableJavascript() {
         return this.enableJavascript;
     }

     // Additional methods, getters, setters...

 }

Answer 2

If you're looking for a solution using Java, one approach is to create a custom WebDriver class that can simulate toggling javascript on and off. This can be particularly useful in Chrome settings.

One way to start is by saving the current page URL so the driver knows where to return after toggling javascript. Keeping track of the current javascript state is also important - if it differs from the desired state, the script can proceed with toggling. The button for toggling javascript is typically located at the middle of the screen, with a noticeable radius. While the X axis is straightforward to handle, the Y axis may require some approximation but should work effectively in most cases.

Here is a sample implementation:

public class IWebDriver implements WebDriver {

     private boolean enableJavascript;
     private WebDriver driver;

     public IWebDriver() {
         this.enableJavascript = true; // Javascript is initially enabled
         this.driver = new ChromeDriver(); // Using ChromeDriver
     }

     public void setEnableJavaScript(boolean enable) throws Exception {
         String currentUrl = getCurrentUrl(); // Save current page URL

         if (this.enableJavaScript != enable) {
             this.driver.navigate().to("chrome://settings/content/javascript");
             Dimension d = driver.manage().window().getSize();
             int x = d.getWidth() / 2;
             int y = (int) ((float) d.getHeight() * 0.123f);
             Actions actions = new Actions(this.driver);
             actions.moveByOffset(x, y).click().build().perform();
        
             // Toggle javascript state
             this.enableJavaScript = !this.enableJavaScript;
         }

         this.driver.navigate().to(currentUrl); // Return to original URL
     }

     public boolean isEnableJavascript() {
         return this.enableJavascript;
     }

     // Additional methods, getters, setters...

 }

Answer 3

Answer №2

When starting a fresh ChromeDriver to launch a new Chrome browser process, it is essential to set up the ChromeDriver instance with ChromeOptions right from the start. These configurations will remain constant throughout the duration of the ChromeDriver and will be immutable while controlling the Chrome browser process.

Even if you manage to retrieve attributes like ChromeDriver and ChromeSession such as Session ID, Cookies, and other session attributes from the initialized ChromeDriver capabilities or from the Browsing Session, you will still not be able to alter those attributes.

Instead of turning off javascript across all pages, if the requirement is to disable javascript on specific pages, you may need to run those tests with a separate configuration for disabling the javascript.

A more organized approach would be to invoke driver.quit() within the tearDown(){} method to gracefully end and terminate the ChromeDriver and Chrome Browser instances before initiating a new set of ChromeDriver and Chrome Browser instance with a fresh set of configurations.

You can participate in a relevant conversation at Change ChromeOptions in an existing webdriver

Answer 4

When starting a fresh ChromeDriver to launch a new Chrome browser process, it is essential to set up the ChromeDriver instance with ChromeOptions right from the start. These configurations will remain constant throughout the duration of the ChromeDriver and will be immutable while controlling the Chrome browser process.

Even if you manage to retrieve attributes like ChromeDriver and ChromeSession such as Session ID, Cookies, and other session attributes from the initialized ChromeDriver capabilities or from the Browsing Session, you will still not be able to alter those attributes.

Instead of turning off javascript across all pages, if the requirement is to disable javascript on specific pages, you may need to run those tests with a separate configuration for disabling the javascript.

A more organized approach would be to invoke driver.quit() within the tearDown(){} method to gracefully end and terminate the ChromeDriver and Chrome Browser instances before initiating a new set of ChromeDriver and Chrome Browser instance with a fresh set of configurations.

You can participate in a relevant conversation at Change ChromeOptions in an existing webdriver

Answer 5

Answer №3

I appreciate BrunoT's solution,

However, here is a slight enhancement. Instead of relying on the mouse for navigation, using tabs can provide a more reliable approach, eliminating concerns about positioning. Below is the updated C# code snippet:

    public void ToggleJavascript()
    {
        driver.Navigate().GoToUrl("chrome://settings/content/javascript");
        new Actions(driver)
            .SendKeys("\t")
            .Pause(TimeSpan.FromMilliseconds(250))
            .SendKeys("\t")
            .Pause(TimeSpan.FromMilliseconds(250))
            .SendKeys(Keys.ArrowDown)
            .Perform();
    }

Answer 6

I appreciate BrunoT's solution,

However, here is a slight enhancement. Instead of relying on the mouse for navigation, using tabs can provide a more reliable approach, eliminating concerns about positioning. Below is the updated C# code snippet:

    public void ToggleJavascript()
    {
        driver.Navigate().GoToUrl("chrome://settings/content/javascript");
        new Actions(driver)
            .SendKeys("\t")
            .Pause(TimeSpan.FromMilliseconds(250))
            .SendKeys("\t")
            .Pause(TimeSpan.FromMilliseconds(250))
            .SendKeys(Keys.ArrowDown)
            .Perform();
    }

Disabling JavaScript for a particular page using Selenium:

Answer №1

Answer №2

Answer №3

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