javascript and Content-Type

workitharder · Jul 2, 2007

Is there any way whatsoever to manipulate the MIME content-type at the
server-side? My goal is to redisplay a (very large) html table with
the "Content-Type:application/vnd.ms-excel" http header. This is to
avoid the need to re-download the data which is already there.

This is my best try and it doesnt work:

Code:

<html><body>
<script language=javascript>

var myTable="<TABLE> <TR> <TD>1</TD> <TD>2</TD> </TR> <TR><TD>3</TD>
<TD>4</TD></TR> </TABLE>"
document.writeln("Hello World!");
document.writeln(myTable);
function f()
{
var
w=window.open('','','toolbar=no,scrollbars=no,width=200,height=150')
w.document.open('application/vnd.ms-excel','replace');
w.document.writeln(myTable);
w.document.close();
}
</script>

<A href="" onClick="document.write('reloading...');">reload</A>
<A href="" onClick="f();return false;">xls</A>

</body></html>

Bruce Wisentaner · Jul 4, 2007

Is there any way whatsoever to manipulate the MIME content-type at the
server-side? My goal is to redisplay a (very large) html table with
the "Content-Type:application/vnd.ms-excel" http header. This is to
avoid the need to re-download the data which is already there.

This is my best try and it doesnt work:

Code:

<html><body>
<script language=javascript>

var myTable="<TABLE> <TR> <TD>1</TD> <TD>2</TD> </TR> <TR><TD>3</TD>
<TD>4</TD></TR> </TABLE>"
document.writeln("Hello World!");
document.writeln(myTable);
function f()
{
var
w=window.open('','','toolbar=no,scrollbars=no,width=200,height=150')
w.document.open('application/vnd.ms-excel','replace');
w.document.writeln(myTable);
w.document.close();
}
</script>[/QUOTE]

[ SNIPPED]

Yes, you can set the content-type header at the server, but then the
message you send is not treated as HTML by the browser, it is treated
as MS-EXCEL, so then Javascript won't work (until MS-Excel  interprets
Javascript.) I suppose you could try embedding an MS-Excel macro, but
that should run afoul of security settings.

Why do you need to redisplay data already there?
If the data is changing in real-time on the server, that calls for
AJAX techniques (and more DOM access), amply covered elsewhere.
If you are manipulating data on the client, then you can use DOM
access and Javascript methods to redo the rows.

---Bruce Wisentaner

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javascript and Content-Type

workitharder

Bruce Wisentaner

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