onclick link not working? Check your input field names!

Had two almost identical web-pages, both using 'buttons' with onclick events linking to another page:

button onclick=location.href="...somewhere..."

After exhaustive fiddling, adding/removing javascript, checking the form method, playing around with submit types, it turned out that one of the input fields on the form was:

name='location'

so the onclick was just updating this input field, and not linking to the new page.

See my submit !=== submit page(!)