How to get a command line parameter in the extension for Chrome?

Question

Google Chrome

Subject. I need to launch google chrome from the command line with a custom parameter that specifies the path to the js script. Next, in the extension, you need to get the path to this script.
I rummaged through the chrome documentation, clicked through the entire contents of the chrome object in the debugger, and did not find anything similar to the command line. Is this even possible or do I need to write a more complex npapi extension? (in the npapi plugin, in theory, you can get a pointer to your own process, then you can pull out the command line and parse it)