Franck Ledoux

Reusing a browser instance rather than starting browser for each tests

2

**Is your feature request related to a problem? Please describe.** Starting a browser for each test takes time. We could make a test campaigns faster by reusing single browser instance....

Sometimes errors (such as rate limits) will include the wait time needed before retrying. This exposes the error to the delay callback. Also fixes the erro -> error typo, and...