Interpolation in url() freezing

[sunkan]

If you have a space before the interpolation libsass freezes and nothing happens.

$var: 'http://test.com';
body {
  background-image: url( #{$var});
}

Tested in

node-sass: 3.4.2
sassc: 3.3.0-10-g8d3d
libsass: 3.3.3-28-g2ed7
sass2scss: 1.0.5

I only found it because i was upgrading some old scripts and they stopped working. But i think it's strange behavior for libsass to freeze.

It works as expected in ruby-sass

[xzyfer]

Thanks for the report @sunkan. I can confirm this issue. We heavily refactored url() handling in recent versions which may have caused this issue.