Value is not a Safari exception sequence

Question

I get this error in any console.log statement in my codebase. This only affects Safari 11.0 (12604.1.38.1.7) on Mac 10.16.6

How can I solve this problem and how did it happen?

Answer 1

You need to disable the "WebDriver" extension.

I had the same problem and my stack trace included a resource called "Script element" that made this call:

b.initMessageEvent("safaridriver.message", !1, !1, a, window.location.origin, "0", window, null); 

Maybe there is a SafariDriver update that also fixes this?