[TypeError: Object #<Object> has no method 'split']

[pkozlowski-opensource]

So, this issue that was surfacing in the past is not quite fixed :-/ The improved the situation, but it might happen that the err.data is an object, ex.:

{ status: 13,
    message: 'Job bed4c78028ed4dcca01b8c2b6169559f has already finished, and can\'t receive further commands. It may have experienced an error. You can learn more at https://saucelabs.com/jobs/bed4c78028ed4dcca01b8c2b6169559f',
    value: {
        message: 'Job bed4c78028ed4dcca01b8c2b6169559f has already finished, and can\'t receive further commands. It may have experienced an error. You can learn more at https://saucelabs.com/jobs/bed4c78028ed4dcca01b8c2b6169559f'
    } }

This object doesn't have the split method so the whole thing fails. We need to explicitly test for the presence of the split method or get rid of it altogether (actually, I'm not sure we really want to be so into formatting this error - IMO it is more important to see it than to see it from time to time nicely formatted).