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agenda Datasheet (PDF Files) cannot download in Internet Explorer when display under HTTPS
We were alarmed to find that attempts to view our AppExchange's application datasheet (PDF file) were failing in Internet Explorer with the error: "The file could not be written to the cache". It turns out any AppExchange file download will fail if the AppExchange web page is displayed with HTTPS (SSL).
I think there's two fixes:
1) force all AppExchange pages to display non encrypted (HTTP).
2) Review header settings used to make sure they don't interfer with PDF downloads
- The server sends the "Cache-Control: No Store" header.
- The server sends the "Cache-Control: No Cache" header.
Who know how many customers were frustrated when attempting to get more information from AppExchange due to this issue.
Regards,
-- Mark
This is due to an IE 6.0 bug. There is a description of the known IE bug and fix/patch available for IE available at Microsoft: http://support.microsoft.com/?kbid=812935
You're correct in that this only occurs when the request is made over https. Changing 'https' to 'http' on the application listing page will cause the download to pass successfully.
Jeremy
So the point is, why isn't the AppExchange redirected to http if the URL is https? It's very easy to start a session in Salesforce (in https) then migrate over to AppExchange which stays in https. I would think it's in Salesforce's best interest to make sure AppExchange remains http only or potential customers are going to think there's something wrong with the AppExchange. And since the vast majority of browser users still use IE .... it figures something should be done.
Regards,
-- Mark
-- Mark