Hi,

I am getting this error within the SilverStripe admin. Specifically, when I am on page content:

1) I click the page settings tab.
2) The URL changes (but a full reload is not occurring, by design)
3) An AJAX request occurs which fails with this status message.
4) If I then reload the browser, the settings form shows.

So I think the issue is not with the settings screen, but with the delivery of the screen via Ajax when switching tabs. I note that in Chrome, a header shows as {"Content" followed by a long block of HTML. I'm guessing that the connection is closed before the chunk is delivered properly, hence it shows as a header. But I don't have any idea where things might be going wrong. I do wonder if it's a jQuery issue as SilverStripe appears to use jQuery for AJAX.

I see this issue in Chrome / IE / Firefox, but not on all our SilverStripe sites -- only on two at this stage. Running 3.1.8.

Anybody else encountered this or have any ideas?

Some additional info. One of our staff checked SilverStripe 3.1.9 and 3.1.10 and had no resolution. We do find the problem goes away if in dev mode. We also find that it works fine on our test and staging environments in any mode. It appears one page type *doesn't* have the issue, so I'll follow that up.

Hey Matthew

We quite often get this error and its due to our antivirus software blocking packet requests - do you have an antivirus running?

Cheers Stevie, we'll follow this up!