use Cache-Control respose header setted by "Caching Policy Manager"

bt5/erp5_multimedia/DocumentTemplateItem/portal_components/document.erp5.Sound.py

@@ -69,7 +69,6 @@ class Sound(File):
     RESPONSE.setHeader('Content-Length', len(data))
     RESPONSE.setHeader('Content-Type', mime)
     filename = self.getStandardFilename(format=format)
-    RESPONSE.setHeader('Cache-Control', 'Private') # workaround for Internet Explorer's bug
     # workaround for IE's bug to download files over SSL
     RESPONSE.setHeader('Pragma', '')
     RESPONSE.setHeader('Content-Disposition',

product/ERP5/Document/BigFile.py

@@ -319,7 +319,6 @@ class BigFile(File):
     if not inline:
       # need to return it as attachment
       filename = self.getStandardFilename(format=format)
-      RESPONSE.setHeader('Cache-Control', 'Private') # workaround for Internet Explorer's bug
       RESPONSE.setHeader('Accept-Ranges', 'bytes')
 
 

product/ERP5/mixin/downloadable.py

@@ -122,7 +122,6 @@ class DownloadableMixin:
         filename = self.getStandardFilename(format=output_format)
       else:
         filename = self.getStandardFilename(format=format)
-      RESPONSE.setHeader('Cache-Control', 'Private') # workaround for Internet Explorer's bug
       # workaround for IE's bug to download files over SSL
       RESPONSE.setHeader('Pragma', '')
       RESPONSE.setHeader('Content-Disposition',