for the last two or three days, agora pages take multiple refresh attempts in order to load completely.
for the GET, browser debug consistently throws the same "net::ERR_INCOMPLETE_CHUNKED_ENCODING" every time.
(except for pages that eventually load correctly, of course).
this could also be from the injection from some new ad in the pool when the page gets built, if it or its template is malformed (e.g., too many empty lines freak out sensitive clients; chrome is worse than safari for example).
you might want to try adding 'Cache-Control' => 'no-cache' to be served in your page response headers.
additionally, look into how you are calculating the content-length header.
if the backend is computing character length instead of byte length, that's wrong. might turn off generating Content-length header temporarily until the template gets fixed.
could also be fixable with an ob_flush(); to ensure you're properly sending the terminal zero-length chunk in the stream.
if you're ASP instead, try replacing
context.Response.Flush();
context.Response.Close();
with
context.Response.End();
which does the same thing, but without cutting the transaction short.
I can set you up with packet traces if that's helpful.
cheers,
R.