core: add node 6 support to (patched) robots-parser #4851
Merged
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Our new patch leaves out node 6 out in cold:
https://travis-ci.org/GoogleChrome/lighthouse/jobs/357025749#L634
node 6.13 has
require('url').URL
but its a month old and no other node 6 has it.so we'll add this backwards-compat support for the rest of node 6's out there.
This PR is for branch2.x only.
Konrad has an upcoming PR to roll latest
robots-parser
(which will now be node 7+ only).Audience-wise: this patch only matters for our Node 6 (>6.0.0 and <6.13.0) CLI users