Fix isAbsoluteURL() regex

[andywer]

Fixes #284.

[andywer]

@aminya I think I found the reason for the issue you ran into. It's just a one-liner. Can you monkey-patch the file in your local node_modules/ and check that it works?

[aminya]

Thank you! This does not solve the issue yet. I did not notice any difference. In implementation.browser.js, the code goes into the second if-else condition and this is the output of console.log(url) in both cases:

blob:file:///9f11280b-ad46-4df7-af45-97663a4a4abf

[aminya]

Check the pull request I made here: #287
Now the output URL is this:

file:///C:/Users/myproject/ide-json/lib/