For some odd reason, you may need to refresh the page to see the hangs correctly.

Scheulder has fired:
In-content has fired:
onload has fired:

Schdeuler started running in the head and was looking for the first paragraph above to be loaded.
In-content will be the last line before the </body> call.
onload was called in <body> tag but waits for all images and such to be loaded.

A 5 second server-side hang here

Now an image call is being made... the server will hang for 5 more seconds before giving it back. Causing the onload to delay. The rest of the HTML on the page will continue to display though.

in-content has been written
body done... should be waiting for the image and onload now