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  1.  Home
  2. WEB400
  3. August 2015

Re: Content-type issue with application/json and application/javascript

Just out of pure ignorance, since application/json causes conversion issues, and text/json appears to work properly, why do you want to use application/json? Are there issues that text/json causes on the client side?

Mark Murphy
STAR BASE Consulting, Inc.
mmurphy@xxxxxxxxxxxxxxx


-----Matt Lavinder <mlavinder@xxxxxxxxxxxxxxxxxxx> wrote: -----
To: "Web Enabling the IBM i (AS/400 and iSeries)" <web400@xxxxxxxxxxxx>
From: Matt Lavinder <mlavinder@xxxxxxxxxxxxxxxxxxx>
Date: 08/25/2015 11:42AM
Subject: Re: [WEB400] Content-type issue with application/json and application/javascript

Henrik -

No worries. I have no intention of changing our CGIConvMode, but I did
want to make sure I understood the implications. The bulk of our CGI
programs produce text/html and they work perfectly fine.

I plan to tweak the programs that produce JSON output and leave everything
else alone.

On Tue, Aug 25, 2015 at 11:36 AM, Henrik Rützou <hr@xxxxxxxxxxxx> wrote:

btw if you use binary or recieve application/xxxx content type the input
also
is recieved as binary without conversion to ebcdic

On Tue, Aug 25, 2015 at 5:34 PM, Henrik Rützou <hr@xxxxxxxxxxxx> wrote:

matt

you are right

On Tue, Aug 25, 2015 at 5:31 PM, Matt Lavinder <
mlavinder@xxxxxxxxxxxxxxxxxxx> wrote:

Kevin -

It's OK because I know enough to get what he was saying. It makes it
pretty clear in the HTTP Server documentation that if you add
"charset=utf-8"
(really, charset=anything) that no conversion occurs on the body.

I have never tried CGIConvMode %BINARY%, but wouldn't that mean that all
your content has to be UTF-8, including output with
"content-type:text/*"?



On Tue, Aug 25, 2015 at 11:23 AM, Kevin Turner <
kevin.turner@xxxxxxxxxxxxxxxxxxxx> wrote:

Henrick

I know English is not your first language, but I couldn't understand
that
at all :)

But anyway, my observations are not relevant because we always use
"CGIConvMode BINARY"

Kevin

-----Original Message-----
From: WEB400 [mailto:web400-bounces@xxxxxxxxxxxx] On Behalf Of Henrik
Rützou
Sent: 25 August 2015 16:19
To: Web Enabling the IBM i (AS/400 and iSeries) <web400@xxxxxxxxxxxx>
Subject: Re: [WEB400] Content-type issue with application/json and
application/javascript

apache doesn't neither converts from an ebcdic body if you send then
the
body also has to be pre-encoded in utf-8

Content-Type: text/html; charset=utf-8

On Tue, Aug 25, 2015 at 5:14 PM, Kevin Turner <
kevin.turner@xxxxxxxxxxxxxxxxxxxx> wrote:

I am pretty sure we always ensure the data is in UTF-8 when sending
content that has a content type that is anything but "text/...."



-----Original Message-----
From: WEB400 [mailto:web400-bounces@xxxxxxxxxxxx] On Behalf Of Matt
Lavinder
Sent: 25 August 2015 16:12
To: Web Enabling the IBM i (AS/400 and iSeries) <
web400@xxxxxxxxxxxx>
Subject: Re: [WEB400] Content-type issue with application/json and
application/javascript

Hello Henrick. That's sort of what I suspected. Do I have to
change
the
CGI program to produce ASCII output, or is there a way to tell
Apache
to do an EBCDIC to ASCII conversion on an "application/javascript"
content type?

On Tue, Aug 25, 2015 at 10:56 AM, Henrik Rützou <hr@xxxxxxxxxxxx>
wrote:

apache converts ebcdic to utf-8 if the content type is text/...
othervise not.


On Tue, Aug 25, 2015 at 4:52 PM, Matt Lavinder <
mlavinder@xxxxxxxxxxxxxxxxxxx> wrote:

We have several CGI programs that generate javascript, usually
JSON.
For years we have set the content type to text/plain or
text/javascript. I'd like to start using the more standard
"application/json", but I am
hitting
a major snag. The output is garbage. I get the exact same
output
when I set the content-type to application/javascript.

Just to verify this was related to CGI output, I used AddType to
change
the
content-type of static JavaScript files to
"application/javascript".
Those
files look fine, so this must have something to do with it being
CGI output.

I don't really know what is up with the output, but I know it
isn't EBCDIC. It doesn't convert. Garbage in, garbage out.
Changing the
content
type back to text/javascript sets everything right.

Anyone have any guesses what is going on here? We use CGIDEV2
under IBM i 7.1. The default CCSID of our CGI jobs is 37.

Just so we are clear on one thing. We had the following
settings
in our HTTP Conf:

DefaultFsCCSID 037
CGIConvMode %%EBCDIC/EBCDIC%%

I commented both settings out and it had no impact on the output
whatsoever. All of our CGI programs that use content type of
"text/*"
seemed to work. The ones using "application/javascript" or
"application/json" for content type still looked like garbage.
The only guess I have is that mod_cgi sees that the content-type
starts with "application" and treats the output as binary, but I
have no idea how I
can
tell mod_cgi to treat "application/javascript" as text, or if
that
is
even
the issue.

I am hoping someone has an idea. I know Apache pretty well, but
this one has me stumped.

--
Matt
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--
Regards,
Henrik Rützou

http://powerEXT.com <http://powerext.com/>
--
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.




--




*Matt Lavinder Programmer AnalystData Management Inc.Phone: (336)
573-5045Fax: (336) 573-5001*
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--
Regards,
Henrik Rützou

http://powerEXT.com <http://powerext.com/>
--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400)
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Before posting, please take a moment to review the archives at
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___________________________________________
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________________________________

NOTICE: The information in this electronic mail transmission is
intended
by CoralTree Systems Ltd for the use of the named individuals or
entity
to
which it is directed and may contain information that is privileged or
otherwise confidential. If you have received this electronic mail
transmission in error, please delete it from your system without
copying or
forwarding it, and notify the sender of the error by reply email or by
telephone, so that the sender's address records can be corrected.






--------------------------------------------------------------------------------


CoralTree Systems Limited
Company Registration Number 5021022.
Registered Office:
12-14 Carlton Place
Southampton
Hampshire
SO15 2EA
VAT Registration Number 834 1020 74.
--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400)
mailing
list
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--




*Matt Lavinder Programmer AnalystData Management Inc.Phone: (336)
573-5045Fax: (336) 573-5001*
--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400) mailing
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--
Regards,
Henrik Rützou

http://powerEXT.com <http://powerext.com/>





--
Regards,
Henrik Rützou

http://powerEXT.com <http://powerext.com/>
--
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