Page includes in child page broken.

Looks like this might just be related to a chatter feed?

Hi Matt, running into this same issue!  Were you ever able to get to the bottom of it?

Hi Matt,

I’ve got the exact same problem as you.
The page works fine. When I add a chatter feed component, the page brakes down and displays the error you described above.

Were you able to further investigate this issue? Any help would be appreciated.

This is from JD at the end of a previous post by Ben:

I’m going to guess that you have the Chatter component on your page include. If that’s the case, then you need to load chatter in with an iFrame. The Chatter component is not supported in Page Includes, popups or drawers for technical reasons related to VF component resource management.

OK, thanks. I will try this then. Thx for your help.