I consider most forms of relative urls to be harmful. This blog post explains why http://www.thespanner.co.uk/2014/03/21/rpo/
@garethheyes Nitpick: “you cannot rely on the browser […]” → it’s really the server that gets tripped up, not the browser.
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@garethheyes Nitpick: “you cannot rely on the browser […]” → it’s really the server that gets tripped up, not the browser.