A bit delayed answer, but maybe interesting for later generations ...
Put the file in the appropriate folder on your web server. It is the same folder that maybe contains the file
http://abc.mysite.com/doku.php. Test the read access with your web browser through directly insert the url of the file (
http://abc.mysite.com/google-<id>.html). The content of the file must be shown in the browser.
For explanation: The file is delivered from your web server beside your DokuWiki installation. That means that has nothing to do with DokuWiki.
HTH anyone - Michael Sy.