Android SMS hyperlink from webpage

I ideally want to be able to pre-populate a text message's to and body fields.

I've read a lot of questions here that give answers which don't seem to work on the latest Android releases.

In particular:

<a href="sms:0123456789">Link</a><br>
<a href="sms://0123456789">Link</a><br>
<a href="sms:/* 0123456789 */?body=/* test content */">Link</a><br>
<a href="sms:/* 0123456789 */&body=/* test content */">Link</a><br>
<a href="sms:+0132456789?body=link">New Link</a>

The error I get is net::ERR_UNKNOWN_URL_SCHEME

Does anyone know what I need to do?