Use window.location.host so that websites run on non-standard ports i…

[sgtwilko]

…nclude the port

[CLAassistant]

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[CLAassistant]

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[sgtwilko]

Hiya I've Def signed the CLA, anything else stopping this from being merged?

[fifieldt]

@sgtwilko , apologies - we've had a large backlog of work for the web project we've been working through, thank you for the reminder!