IE cache pb when downloading

Question

Hi,
i made a BSP application which retrieve documents from Master Data. In my page, i use the htmlb object link which make an url to the document. Documents are in :
http://sapserver/SAP/BW/DOC/MAST/FLDMAST/
For txt file, it works, but for word file, i can view the document one time (it's opening in a new page with the attribute page="_blank"), but when i click a second time the link (with and  without refreshing the page), it doesn't work (Impossible to display the page). The only solution is to go in IE options, internet option, and erase offline files. An then, i can click only one time my link and view the word file. It's a cache file pb but how can i solve my pb (another way than to click IE options and erase offline files or set the parameter to verify new version at all visit) ? Is there any option which can help me ? Or must i change / add attribute in my bsp pages ?
At the beginning, i think to cache the page, but word files are not a part of bsp page.
Thanks

Answer 1

Cédric,
Please let us just sync our terminology. "pb" = "problem"? "Ko" is maybe Kilobyte, which is usually abbreviated "Kb"? "Idem."? In English, one ! is enough to terminate all sentences!
First to test 2: you list the BSP/HTMLB coding that you use. This is perfectly OK, there is no problems.
In test 1 we use only raw HTML to get a page into the browser. Once the HTML is in the browser, BSP plays no role anymore. This is the typical tests that we do to systematically isolate the error, and remove components. At this stage, I would say it is no BSP error. It has to do with how the HTTP handler (which you trigger) sends the document to the browser, what headers are set, and where the document is cached.
But i think i cannot remove system parameter (sap-language=FR & sap-client=050)
In principle these two parameters are in anycase stored as a cookie in the browser, and you do not have to supply them in the URL. At least to continue for the moment, you can leave them away.
To continue with the problem, you will have to open an OSS message, so we can look at the complete problem (using your test1 page). Our interest is to see what this handler does exactly.
I have spend a little time tonight to review the URL that you supply and the code that is executed. At the end of the chain, a special handler is called to do the final HTTP response, which we "own". So please queue problem directly onto BC-BSP, and reference this SDN thread.
Add inside OSS message: /SAP/BW/DOC/MAST --> CL_HTTP_WEBDAV_RSOD,
which is based on CL_HTTP_WEBDAV. Actual low level handler is used for sending. Check comments in dev system on handling of etags. HTTP proxy trace required to see what HTTP headers are actually set and behaviour of browser in this case.
By leaving of the URL parameters, you should be able to continue until the problem is completely understood.
brian