hello all

i have a python product with an image as a property
now i display the image in the management screen, but when i change the 
image via the management interface the browser does no refresh of the image

is set the mod time like this:

self.doc_icon.lmt=time.time()
self.doc_icon.lmh=rfc1123_date(self.doc_icon.lmt)

doc_icon is a ImageFile

so the date changes but the browser doesn't update this

do i have to add something in the http header of the management page or so

please help -- bernd

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