[TYPO3-dev] Problem with core function addTempContentHttpHeaders and IE

[Simon Tuck]

Hi List,
We've run into a problem with the headers sent by the function 
addTempContentHttpHeaders in tslib_fe and internet explorer. The headers 
sent include:
	header('HTTP/1.0 503 Service unavailable');
	header('Retry-after: 3600');
	header('Pragma: no-cache');
	header('Cache-control: no-cache');
	header('Expire: 0');
The problem is IE chokes on the 503 Service unavailable header, in our case 
we are delivering dynamic content to a pdf. If we bypass the function 
addTempContentHttpHeaders the server sends 200 and IE waits.
Clearly this is a problem with IE as it should wait awhile, although 3600 
seems a long time to wait (are these seconds or milliseconds). I assume this 
function has something to do with the 'page is being generated' message 
(???), but I wonder if it's really necessary, seeing as it has the potential 
to stop IE.
Cheers,
Simon