Question Moving Pages to New URL's - Unable to Use 301 Redirects to Tell Search Engines The Pages Have Moved got me thinking - If there is only access to change the content of a page to affect redirection we can use
<meta http-equiv="REFRESH" content="0; url=XXXXXXX>
Of-course, this does not create a 30x status code, but on the other hand is very old (I remember using it with Netscape) and has a very low barrier as its just HTML.
How does Google treat http-equiv="REFRESH" to a new URL from a redirection/SEO POV?