"'Emulation.setCPUThrottlingRate' wasn't found" error when trying to throttle with Chrome's Protocol monitor tool (CDP)
I'm trying to simulate CPU throttling using the Chrome DevTools Protocol, by running the following command in the Protocol monitor tab of Chrome DevTools' Drawer:
{"command":"Emulation.setCPUThrottlingRate","parameters":{"rate": 20}}
This yields the following error with version 122 of Google Chrome (whether on macOS or Windows):
{
"code": -32601,
"message": "'Emulation.setCPUThrottlingRate' wasn't found"
}
Solution
@stephen-ostermiller it took me a while but I've found the solution
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