How to use addCustomRequestHeader method in selenium?

Question

I was trying to use addCustomRequestHeader method to set a custom header for selenium requests. Given below is the source code

 Selenium sel = new DefaultSelenium("localhost",4444,"*firefox","http://www.google.com"); sel.start("addCustomRequestHeader=true"); // sel.start(); sel.addCustomRequestHeader("mycustomheader","automation"); sel.open("http://www.google.com/"); 

This code didn't add the header to the request. I tried to look up the request headers using Fiddler. Does any one here know what am I doing wrong here? Any help would be appreciated

Answer 1

You need to start the selenium in proxy injection mode

java -jar selenium-server-standalone.jar -proxyInjectionMode 

You can then add custom requests headers like this (in Python)

sel.start("addCustomRequestHeader=true") sel.add_custom_request_header("mycustomheader","automation") sel.open('http://www.google.com') 

To see if the custom header has been applied, check the tab that has the selenium server running. You should see something like this in the console messages

INFO - Command request: addCustomRequestHeader[mycustomheader, automation] on session INFO - Got result: OK on session 

Answer 2

In my case, running selenium in proxy injection mode is not acceptable so I have followed the approach of 'ModHeader' chrome extension to set the custom headers. This approached worked fine for me.

ModHeader Extension: https://github.com/mdamien/chrome-extensions-archive 

Here is the code snippet

ChromeOptions chromeOpt = new ChromeOptions(); chromeOpt.addArguments("--no-sandbox"); System.setProperty("webdriver.chrome.args", "--disable-logging"); System.setProperty("webdriver.chrome.silentOutput", "true"); chromeOpt.addExtensions(new File("./ModHeader_v2.2.3.crx")); WebDriver driver = new ChromeDriver(chromeOpt); // set the context on the extension so the localStorage can be accessed driver.get("chrome-extension://idgpnmonknjnojddfkpgkljpfnnfcklj/icon.png"); // setup ModHeader with two headers (token1 and token2) ((JavascriptExecutor)driver).executeScript( "localStorage.setItem('profiles', JSON.stringify([{ " + " title: 'Selenium', hideComment: true, appendMode: '', " + " headers: [ " + " {enabled: true, name: 'token1', value: 'testHeaderValue1', comment: ''}, " + " {enabled: true, name: 'token2', value: 'testHeaderValue2', comment: ''} " + " ], " + " respHeaders: [], " + " filters: [] " + "}])); "); driver.navigate().to("https://localhost:8443"); 

Fiddler Custom header snapshot