Ran into an interesting problem today. It seems that IE8 and before no longer
likes how we are sending BLOB files.
Worked last week as far as we can tell. Works fine for IE9+ and other
browsers, but IE8 is suddenly giving us an error message, as though it is
ignoring the response headers.
I'm not going to completely rule out the possibility it is in our code
somewhere, but we haven't found it yet. We did also upgrade out app over the
weekend, but the problem didn't show up in our test environment (as far as we
can tell).
Here is the relevant code:
protected void viewAction(ServletContext ctx, HttpServletRequest req,
HttpServletResponse rsp)
throws ServletException, IOException, PolyError {
// Get beans
ReportDashboardBean bean = (ReportDashboardBean)
session.getAttribute(SessionConstants.REPORT_DASHBOARD_BEAN);
// get request data
int row = userBean.getLongValue(req, "ROW").intValue();
ReportContentBean conBean = (ReportContentBean)
bean.getContentList().get(row);
//System.out.println("*** " + conBean.getFilename(false));
rsp.setContentType(conBean.getDbObject().getMimeType());
StringBuilder sbContentDisposition = new StringBuilder();
if (conBean.getDbObject().getMimeType().indexOf("text/html") >= 0) {
sbContentDisposition.append("inline; "); // streamline output
automatically
} else {
sbContentDisposition.append("attachment; "); // ask user to "open"
or "save" content
}
sbContentDisposition.append("filename=").append(conBean.getFilename(false)).append(";");
rsp.setHeader("Content-Disposition", sbContentDisposition.toString());
conBean.getDbObject().getContent(rsp.getOutputStream());
}
Works great if the MimeType is text/html, but anything else generates an error.
The getContent routine reads from the BLOB and copies it to the response output
stream.
None of this code has changed, and the access log shows a 200 response and the
full number of bytes of the file.
Anybody have any ideas?
Server1 specs: Tomcat 6.0.33/Java 1.6.0_33/Windows 2003 SP2
Server2 specs: Tomcat 6.0.36/Java 1.6.0_34/Windows 2008 R2/SP1
Jeffrey Janner
Sr. Network Administrator
jeffrey.jan...@polydyne.com<mailto:first.l...@polydyne.com>
PolyDyne Software Inc.
Main: 512.343.9100
Direct: 512.583.8930
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