Alna2081,
I also have this problem most notably with the ‘https://<MySiteName>/sitemap_index.xml’ Firefox’s ‘view page source’ shows the following error on the first line of content:
“Saw ‘<?’. Probable caused: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML)
Reading the header from ‘https://<MySiteName>/sitemap_index.xml’
gives:
[(‘x-powered-by’, ‘PHP/5.2.17’),
(‘transfer-encoding’, ‘chunked’),
(‘server’, ‘Apache’),
(‘last-modified’, ‘Thu, 01 Jan 1970 00:00:00 GMT’),
(‘connection’, ‘close’),
(‘pragma’, ‘public’),
(‘cache-control’, ‘max-age=18000, public’),
(‘date’, ‘Mon, 08 Dec 2014 21:24:36 GMT’),
(‘content-type’, ‘text/html’)]
I think content-type is supposed to be ‘text/xml’ and this is what’s confusing the browsers.
Whether this affects google/bing/yahoo crawlers or not, I have no idea.
Hope this helps,
Todd
