在Java上的get（）之前在Selenium WebDriver上执行javaScript

Question

I am trying to access a web page using selenium in Java. The problem is that the site is giving me an error Exception in thread "main" org.openqa.selenium.WebDriverException: com.gargoylesoftware.htmlunit.ScriptException: ReferenceError: "require" is not defined.
I asked a front end dev and told me that i should try to load a javascript before the loading of the page. The script he mentioned is require.js and i found it at https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.6/require.js

I am using htmlunit-driver 2.28 I noticed that when I initialise the driver like
HtmlUnitDriver driver =new HtmlUnitDriver(true);
I do get an option of
driver.executeScript(script, args)
which is not available on WebDriver driver =new HtmlUnitDriver(true);
I guess i can work around it (since my code is on production for other projects using WebDriver) and use HtmlUnitDriver but I have no idea how to use the executeScript to pass a url for the script

How can I inject this to my WebDriver? Thanks

Answer 1

You have to customize the WebClient used by the HtmlUnitDriver a bit. As default the option throwExceptionOnScriptError is true. But all the browsers are ignoring processing the javascrip if a (unhandled) exception occurs. If i got you right your page throws this exception also if running with the real browser; means you have to

1. swith of throwExceptionOnScriptError
2. talk to the page/js developer about code quality

Sample code:

WebDriver driver = new HtmlUnitDriver(true) {
    @Override
    protected WebClient modifyWebClient(WebClient client) {
        client.getOptions().setThrowExceptionOnScriptError(false);
        return client;
    }
};