Wpg_docload not producing a file save dialog box

Question

Hi Everyone,
I have a BLOB column in a database table and I want to show a link on a web page so when user click on it, it pops up a file download dialog box giving the user option to either open or "save as".
I am using wpg_docload.download file but it seems to be load the blob data into the browser (inline)
Here is the code:
   -- get image size
    intimgsize := dbms_lob.getlength(page_b_contents);
    -- print the header   
    owa_util.mime_header('Content-Type:application/vnd.ms-word;charset=utf-8', false);
    htp.p('Content-length: ' || intimgsize);
    htp.p('Content-Disposition:attachment filename="test.doc"');
    owa_util.http_header_close;
    -- download BLOB
    wpg_docload.download_file(page_b_contents);
Any thoughts what might be wrong?
Thanks

Answer 1

How must wpg_docload.download_file hack across the network, and into the client o/s process executable running the browser, and then force that browser process to pop up a dialog box to save contents as a file?
Do you understand the concept behind Mime types? The browser has specific actions (some configurable) for specific Mime types. PL/SQL can specify the Mime type. And provide a well formatted Mime header. It cannot however force the browser to act in a specific way when it receives that Mime stream from PL/SQL.
See Office 2007 File Format MIME Types for HTTP Content Streaming - VSOfficeDeveloper: Known Problems, Bugs, and Fixes - Si… for basic header details.