Check location.port for truthiness #1643
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According to the w3 spec for Window: http://www.w3.org/TR/Window/#location `location.port` might be null. This PR checks that it is truthy before checking for the port's length. One place where location.port is null is within [jsdom](https://github.com/tmpvar/jsdom), so if you run less within Node, within jsdom, it throws an exception in this code.
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lukeapage
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Nov 15, 2013
Check location.port for truthiness
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According to the w3 spec for Window:
http://www.w3.org/TR/Window/#location
location.portmight be null. This PR checks that it is truthy before checking for the port's length.One place where location.port is null is within jsdom, so if you run less within Node, within jsdom, it throws an exception in this code.