[gen] pod field: bugfix: download a generated or frozen pod result.

fields/file.py

@@ -212,11 +212,12 @@ class FileInfo:
         self.modified = DateTime()
         self.size = os.stat(fsName).st_size
 
-    def writeResponse(self, response, dbFolder=''):
+    def writeResponse(self, response, dbFolder='', disposition='inline'):
         '''Writes this file in the HTTP p_response object.'''
         # As a preamble, initialise response headers.
         header = response.setHeader
-        header('Content-Disposition', 'inline;filename="%s"' % self.uploadName)
+        header('Content-Disposition',
+               '%s;filename="%s"' % (disposition, self.uploadName))
         header('Content-Type', self.mimeType)
         header('Content-Length', self.size)
         header('Accept-Ranges', 'bytes')

fields/pod.py

@@ -731,7 +731,10 @@ class Pod(Field):
             # attachment?
             mailing = rq.get('mailing')
             if not mailing:
-                res.writeResponse(rq.RESPONSE)
+                # With disposition=inline, Google Chrome and IE may launch a PDF
+                # viewer that triggers one or many additional crashing HTTP GET
+                # requests.
+                res.writeResponse(rq.RESPONSE, disposition='attachment')
                 return
             else:
                 # Send the email(s).