Unable to send Content-Type="text/html" on header

Hello,

I'm trying to make a mobile web with an IBM Websphere Application Server 5.0
and an IIS 5.0 as the web server. But when I access to the site with a mobile
device the server don't return any content-type header for html. For css and
jpg the content-type is right but for the html generated from the jsp page
wich I tried to access there's no content-type returned. I have put on the
jsp the page directive, the response.setContentType and a meta-data.

I try to put the header on custom headers configuration, but now, this
allways send back content-type="text/html" so the images will not be
displayed by de mobile device.

Thanks. I apologized speaking a bad English but in the spanish section I
don't have any anwer.

Re: Unable to send Content-Type="text/html" on header

On Aug 2, 4:44 am, David.Hern
wrote:
> Hello,
>
> I'm trying to make a mobile web with an IBM Websphere Application Server 5.0
> and an IIS 5.0 as the web server. But when I access to the site with a mobile
> device the server don't return any content-type header for html. For css and
> jpg the content-type is right but for the html generated from the jsp page
> wich I tried to access there's no content-type returned. I have put on the
> jsp the page directive, the response.setContentType and a meta-data.
>
> I try to put the header on custom headers configuration, but now, this
> allways send back content-type="text/html" so the images will not be
> displayed by de mobile device.
>
> Thanks. I apologized speaking a bad English but in the spanish section I
> don't have any anwer.



This sounds like a bug within JSP and Websphere. IIS will send back
properly configured content type for resources that it serves as
static file. For dynamic content, it is the responsibility of the
handler to send the correct content-type.

Thus, HTML generated from JSP page is not considered content served by
IIS and is the responsibility of the JSP page processor -- so your
question is really about JSP and not IIS. Why it does not send a
content-type when you configure it -- that is a good question for
Websphere support personel.

I can only say the problem has nothing to do with IIS at this point.


//David
http://w3-4u.blogspot.com
http://blogs.msdn.com/David.Wang
//

Re: Unable to send Content-Type="text/html" on header

"David Wang" wrote:

> On Aug 2, 4:44 am, David.Hern
> wrote:
> > Hello,
> >
> > I'm trying to make a mobile web with an IBM Websphere Application Server 5.0
> > and an IIS 5.0 as the web server. But when I access to the site with a mobile
> > device the server don't return any content-type header for html. For css and
> > jpg the content-type is right but for the html generated from the jsp page
> > wich I tried to access there's no content-type returned. I have put on the
> > jsp the page directive, the response.setContentType and a meta-data.
> >
> > I try to put the header on custom headers configuration, but now, this
> > allways send back content-type="text/html" so the images will not be
> > displayed by de mobile device.
> >
> > Thanks. I apologized speaking a bad English but in the spanish section I
> > don't have any anwer.
>
>
>
> This sounds like a bug within JSP and Websphere. IIS will send back
> properly configured content type for resources that it serves as
> static file. For dynamic content, it is the responsibility of the
> handler to send the correct content-type.
>
> Thus, HTML generated from JSP page is not considered content served by
> IIS and is the responsibility of the JSP page processor -- so your
> question is really about JSP and not IIS. Why it does not send a
> content-type when you configure it -- that is a good question for
> Websphere support personel.
>
> I can only say the problem has nothing to do with IIS at this point.
>
>
> //David
> http://w3-4u.blogspot.com
> http://blogs.msdn.com/David.Wang
> //

Thanks for the answer but I differ by two reasons:

On the test server we have the shame arquitecture with an Apache server and
the responses headers are right. And when we connect directly to de
WebSpehere App. Server 5.0 the responses are right too.

We are very confused about this. ¿Any other idea?

Thank you very much for your time.

Re: Unable to send Content-Type="text/html" on header

On Aug 3, 12:14 am, David.Hern
wrote:
> "David Wang" wrote:
> > On Aug 2, 4:44 am, David.Hern
> > wrote:
> > > Hello,
>
> > > I'm trying to make a mobile web with an IBM Websphere Application Ser=
ver 5.0
> > > and an IIS 5.0 as the web server. But when I access to the site with =
a mobile
> > > device the server don't return any content-type header for html. For =
css and
> > > jpg the content-type is right but for the html generated from the jsp=
page
> > > wich I tried to access there's no content-type returned. I have put o=
n the
> > > jsp the page directive, the response.setContentType and a meta-data.
>
> > > I try to put the header on custom headers configuration, but now, this
> > > allways send back content-type=3D"text/html" so the images will not be
> > > displayed by de mobile device.
>
> > > Thanks. I apologized speaking a bad English but in the spanish sectio=
n I
> > > don't have any anwer.
>
> > This sounds like a bug within JSP and Websphere. IIS will send back
> > properly configured content type for resources that it serves as
> > static file. For dynamic content, it is the responsibility of the
> > handler to send the correct content-type.
>
> > Thus, HTML generated from JSP page is not considered content served by
> > IIS and is the responsibility of the JSP page processor -- so your
> > question is really about JSP and not IIS. Why it does not send a
> > content-type when you configure it -- that is a good question for
> > Websphere support personel.
>
> > I can only say the problem has nothing to do with IIS at this point.
>
> > //David
> >http://w3-4u.blogspot.com
> >http://blogs.msdn.com/David.Wang
> > //
>
> Thanks for the answer but I differ by two reasons:
>
> On the test server we have the shame arquitecture with an Apache server a=
nd
> the responses headers are right. And when we connect directly to de
> WebSpehere App. Server 5.0 the responses are right too.
>
> We are very confused about this. =BFAny other idea?
>
> Thank you very much for your time.- Hide quoted text -
>
> - Show quoted text -


Apache, IIS, and Webspehere interact with JSP via very different
connectors that are basically different codebases. Thus, when you say
you have a "problem with IIS 5.0 as the web server", you are really
saying that the problem is either with the JSP connector for IIS or
IIS.

It is fine that you have the same architecture with Apache and it
works with WebSphere, but that only suggets the problem is probably
not within your JSP page because two different platforms do not have
issues with it. But that hardly means the problem is with IIS because
there is other connector code involved to make your JSP code execute.
IIS only supports static HTML pages by default -- everything else
requires a special handler to connect IIS to the appropriate dynamic
script handler.

I am clarifying your statement by saying that the problem cannot be
with IIS. In the case of a non-static content like JSP handled by an
external handler, the handler is responsible for setting the Content-
Type. IIS literally has nothing to do with the response other than to
send back what the handler sent.

Thus, you really need to look for support for the JSP connector for
IIS that you are using, which is not a Microsoft product nor supported
on this newsgroup. My suspicion is that JSP vendors tend to have
inadequate and buggy code for IIS simply to convince you to run their
products on their preferred servers like Apache or WebSphere, so you
may not find much support.


//David
http://w3-4u.blogspot.com
http://blogs.msdn.com/David.Wang
//

Re: Unable to send Content-Type="text/html" on header

Ok, thank you very much.

We will consider another way of investigation

Greetings.

"David Wang" wrote:

> On Aug 3, 12:14 am, David.Hern
> wrote:
> > "David Wang" wrote:
> > > On Aug 2, 4:44 am, David.Hern
> > > wrote:
> > > > Hello,
> >
> > > > I'm trying to make a mobile web with an IBM Websphere Application Server 5.0
> > > > and an IIS 5.0 as the web server. But when I access to the site with a mobile
> > > > device the server don't return any content-type header for html. For css and
> > > > jpg the content-type is right but for the html generated from the jsp page
> > > > wich I tried to access there's no content-type returned. I have put on the
> > > > jsp the page directive, the response.setContentType and a meta-data.
> >
> > > > I try to put the header on custom headers configuration, but now, this
> > > > allways send back content-type="text/html" so the images will not be
> > > > displayed by de mobile device.
> >
> > > > Thanks. I apologized speaking a bad English but in the spanish section I
> > > > don't have any anwer.
> >
> > > This sounds like a bug within JSP and Websphere. IIS will send back
> > > properly configured content type for resources that it serves as
> > > static file. For dynamic content, it is the responsibility of the
> > > handler to send the correct content-type.
> >
> > > Thus, HTML generated from JSP page is not considered content served by
> > > IIS and is the responsibility of the JSP page processor -- so your
> > > question is really about JSP and not IIS. Why it does not send a
> > > content-type when you configure it -- that is a good question for
> > > Websphere support personel.
> >
> > > I can only say the problem has nothing to do with IIS at this point.
> >
> > > //David
> > >http://w3-4u.blogspot.com
> > >http://blogs.msdn.com/David.Wang
> > > //
> >
> > Thanks for the answer but I differ by two reasons:
> >
> > On the test server we have the shame arquitecture with an Apache server and
> > the responses headers are right. And when we connect directly to de
> > WebSpehere App. Server 5.0 the responses are right too.
> >
> > We are very confused about this. ?Any other idea?
> >
> > Thank you very much for your time.- Hide quoted text -
> >
> > - Show quoted text -
>
>
> Apache, IIS, and Webspehere interact with JSP via very different
> connectors that are basically different codebases. Thus, when you say
> you have a "problem with IIS 5.0 as the web server", you are really
> saying that the problem is either with the JSP connector for IIS or
> IIS.
>
> It is fine that you have the same architecture with Apache and it
> works with WebSphere, but that only suggets the problem is probably
> not within your JSP page because two different platforms do not have
> issues with it. But that hardly means the problem is with IIS because
> there is other connector code involved to make your JSP code execute.
> IIS only supports static HTML pages by default -- everything else
> requires a special handler to connect IIS to the appropriate dynamic
> script handler.
>
> I am clarifying your statement by saying that the problem cannot be
> with IIS. In the case of a non-static content like JSP handled by an
> external handler, the handler is responsible for setting the Content-
> Type. IIS literally has nothing to do with the response other than to
> send back what the handler sent.
>
> Thus, you really need to look for support for the JSP connector for
> IIS that you are using, which is not a Microsoft product nor supported
> on this newsgroup. My suspicion is that JSP vendors tend to have
> inadequate and buggy code for IIS simply to convince you to run their
> products on their preferred servers like Apache or WebSphere, so you
> may not find much support.
>
>
> //David
> http://w3-4u.blogspot.com
> http://blogs.msdn.com/David.Wang
> //
>
>