I am uploading images to the blob store. I have copied the example from http://code.google.com/appengine/docs/java/blobstore/overview.html
The only problem I encounter is: If I load the page with the form, and not immediately submit the image. The URL can expire and when I do try and load the image I get an error page. How can I check to see if the URL has expired and refresh the URL without the user knowing? -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
