A method of generating an experience analytics script that is override-robust starts with processor receiving a script and generating, based on the script, an experience analytics script that is override-robust. Generating the experience analytics script comprises identifying expressions in the script referencing browser native functions of a browser, and replacing the expressions referencing the native functions of the browser with expressions including one or more references that are set at upon execution. The processor causes the experience analytics script to be executed on the browser of a customer client device. Upon execution of the experience analytics script, a value of the one or more references are set to an iframe window. The iframe window is associated with an iframe providing access to a pure untouched version of the native functions of the browser. Other embodiments are described herein.