Fix preview opening relative link

[rongcuid]

Fixes #397. I haven't tested very comprehensively, but I tried a few common cases (that I encounter).

[rongcuid]

Is there anything I can do to help with the preview process?

[danyill]

Thank you for this contribution and your patience with the review process.

This PR doesn't currently pass an npm lint but the fix is easy. If we could remove extraneous commented code that would be good (this repo already suffers from an overdose of that) and I think the additional task is not required.

If you agree could you please make the modifications.

[rongcuid]

All should be resolved

[joaompinto]

LGTM

[rongcuid]

I didn't set up linting myself (not familiar with node.js), but I think that is all changes.

[rongcuid]

Is there something I still need to do? It still says Changes requested. Not sure if I need to confirm something somewhere.

[danyill]

LGTM, thanks @rongcuid for these changes and for this improvement.

@joaompinto if you have the time could we have a release pelase? (Incidentally I plan to to do some work on this extension and winter is soon approaching which will provide more time -- there are several other deprecations which will probably bite soon).

[joaompinto]

@danyill I have been a bit inactive lately, the release to marketplace is automated, you just need to create a new tag and push it, do you want to try it ?

[danyill]

@danyill I have been a bit inactive lately, the release to marketplace is automated, you just need to create a new tag and push it, do you want to try it ?

A little scary but yes that worked beautifully, thanks 😄