Update no-url-available.markdown to include subdomain hint (#15742)

Co-authored-by: Franck Nijhof <frenck@frenck.nl>
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Sam 2020-11-25 21:16:54 +11:00 committed by GitHub
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@ -84,6 +84,12 @@ Some additional notes:
might cause problems with casting to media devices. might cause problems with casting to media devices.
- If you do not have an external address for your Home Assistant instance, - If you do not have an external address for your Home Assistant instance,
leave that field empty. leave that field empty.
- Ensure that the URL you provide matches the true address your browser uses to
reach the instance. Many popular browsers will hide the www subdomain; if you
try to configure `http://foo.bar`, but you're actually at `http://www.foo.bar`,
OAuth will fail and you will receive this error. You can always check the
actual domain by pasting `javascript:alert(document.location)` in your address
bar and pressing enter.
After setting the URLs, click save. There is no need to restart Home Assistant After setting the URLs, click save. There is no need to restart Home Assistant
your changes are applied immediately. your changes are applied immediately.