[Hypercontent-users] another worthwhile patch in CVS

[Alex V. <al...@bi...>]

Hi all,
	I have just committed a patch to CVS that addresses a bug in IE,  
which displays its cached data instead of fresh HTTP 200 response  
data received in response to a forced conditional request if the last  
modified header is not more recent than what's in the cache. Other  
browsers don't do this, and I believe it could be a violation of the  
HTTP 1.1 specification in regards to cache control, but anyway it  
makes sense for HyperContent to return the current time in the last- 
modified header of a dynamic response, so I'm not going to pick a  
fight with Microsoft on this one.

The user-facing symptom of this bug would be while using a recent  
version of IE, after opening a file for editing, discarding the  
changes, then opening it for editing again, the submission of the  
first editing form would NOT change the underlying data, as the form  
was pulled from IE's cache with expired form bindings, and thus the  
inputs were not recognized by HyperContent.     Subsequent attempts  
to submit that or other editing forms while the file is open would  
then succeed, due to the user's temp file modification date being  
updated, perhaps leading the user to think it was an anomaly or their  
own error.  They might not even notice, for example if they  
immediately switch to another editor without using the first one.

This bug may also affect HyperContent 2.0 users who are not using  
current CVS code; you can manually apply the patch to

org.hypercontent.server.ContentServer

Search for the line:

   final Date assetMod = asset.lastModified();

And replace it with:

   final Date assetMod = isModal ? new Date(time1) :  
asset.lastModified();


HC 2.0 users should NOT try to use the current CVS version of  
ContentServer without using the rest of the latest CVS code as well!

Cheers,
	Alex