Error thrown when visiting url with --mu

[mrvdot]

Describe the bug Running a script with the --mu flag immediately fails with Method Promise.prototype.then called on incompatible receiver [object Object].

To Reproduce Steps to reproduce the behavior:

1. Run a simple script (see error.perf.txt, renamed to .txt for Github) with --mu flag
2. See error in console log, followed by iteration # 2 stalling out with no progress

Expected behavior The script should work

Screenshots

Desktop (please complete the following information):

• OS: Ubuntu Linux
• Node.js version: 16.5.0
• Version 2.0.4

Additional context Discovered when running against a previously working script, seems to be a new issue.

[mrvdot]

Update, it appears that installing element-cli locally (in addition to globally) fixes the issue, even though it's the same version (2.0.4)