How to replace a capability-value in the Selenium Grid before passing to a node

Question

Is their a way to change the values of the Capabilities in the Selenium Grid?

I am already extending the org.openqa.grid.internal.utils.DefaultCapabilityMatcher in a java class to validate some values. Need a way to replace them as well before passing to the Nodes?

Answer 1

You can build your on custom proxy to do so. In the custom proxy you need to extend the following class: org.openqa.grid.selenium.proxy.DefaultRemoteProxy and override beforeSession function which has TestSession object as a parameter, from where you can get the capabilities. While registering your node you need to specify the new proxy and start the hub with new custom proxy.