How do I get IIS7 to compress json / asmx webservices? RSS

8 replies

Last post Dec 19, 2012 02:59 AM by yanuar

EgilOfBorg

How do I get IIS7 to compress json / asmx webservices?

Mar 06, 2009 02:44 PM|LINK

I have a dedicated server running IIS7 on Server 2008 standard. In my web.config I added the following, but still no luck.

<system.webServer>
    <urlCompression doDynamicCompression="true" />
    <httpCompression>
      <dynamicTypes>
        <add mimeType="application/json" enabled="true" />
        <add mimeType="application/json; charset=utf-8" enabled="true" />
      </dynamicTypes>
    </httpCompression>
</system.webServer>

I can see (through Firebug) that my .aspx pages are compressed, so compression is working, but my XHR request/responses are not. Whats missing?

This is the request/response headers I see:

Response Headers
Cache-Control	private, max-age=0
Content-Type	application/json; charset=utf-8
Server	Microsoft-IIS/7.0
X-AspNet-Version	2.0.50727
X-Powered-By	ASP.NET
Date	Fri, 06 Mar 2009 15:23:43 GMT
Content-Length	567
Request Headers
Host	tracker.blueprint.local
User-Agent	Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7
Accept	text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8
Accept-Language	en-gb,en;q=0.5
Accept-Encoding	gzip,deflate
Accept-Charset	ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive	300
Connection	keep-alive
Content-Type	application/json; charset=utf-8
Referer	http://tracker.blueprint.local/
Content-Length	2
Cookie	ASP.NET_SessionId=rhv13555dv1isyzrqpw4ct55
Pragma	no-cache
Cache-Control	no-cache

- Reply
anilr

2343 Posts

Microsoft

Re: How do I get IIS7 to compress json / asmx webservices?

Mar 06, 2009 04:49 PM|LINK

The httpCompression section can only be specified in applicationhost.config.

Anil Ruia
Software Design Engineer
IIS Core Server
- Marked as answer by Leo Tang - MSFT on Mar 13, 2009 01:18 AM
- Reply
EgilOfBorg

2 Posts

Re: How do I get IIS7 to compress json / asmx webservices?

Mar 06, 2009 07:12 PM|LINK

Hi anilr

I tried putting it in Windows\System32\inetsrv\config\applicationHost.config - still no Content-Encoding: gzip in the header. What am I missing?

Thanks for your help!
- Reply
anilr

2343 Posts

Microsoft

Re: How do I get IIS7 to compress json / asmx webservices?

Mar 06, 2009 07:57 PM|LINK

An application-pool recycle is required for changes to httpCompression section to be picked up.

Anil Ruia
Software Design Engineer
IIS Core Server
- Reply
Udi

1 Post

Re: How do I get IIS7 to compress json / asmx webservices?

Jan 26, 2010 03:58 PM|LINK

Hi.

In opposite to IIS 6,

I can not make IIS 7 to compress WITH "Chunked transfer-encoding"...

Is there an easy way to do so (windows server 2k8 x64 IIS 7.0)?

in iis 6 just AspEnableChunkedEncoding="TRUE" at the metabase.xml

Is the equivalent to metabase.xml is applicationhost.config? if so, then how do i set there the support for chunky thingy?

compression Chunked
- Edited by Udi on Jan 26, 2010 09:35 PM
- Edited by Udi on Jan 26, 2010 09:35 PM
- Reply
dlee00

2 Posts

Re: How do I get IIS7 to compress json / asmx webservices?

Feb 04, 2010 10:02 PM|LINK

Hi,

I am having the same issue here. Regular aspx pages work fine, while the transfer encoding Chunked pages do not. And those are most important to compress.

I am using .net 2.0 code with webservices and webparts from sharepoint. Server 2008 R2 with IIS 7.5. Using fiddler to see responses. I notice the content type ofr the chunked .aspx pages are blank.

transfer encoding chunked compression iis7
- Edited by dlee00 on Feb 04, 2010 10:03 PM
- Reply
dlee00

2 Posts

Re: How do I get IIS7 to compress json / asmx webservices?

Feb 11, 2010 07:13 PM|LINK

can anyone help me with a solution???
- Reply
eddymul

1 Post

Re: How do I get IIS7 to compress json / asmx webservices?

Nov 02, 2012 09:40 AM|LINK
Maybe you not installed the Dynamic Content Compression feature yet. 1. Go to: Turn Windows features on or off 2. Breakdown anc check: Internet Information Services -> World Wide Web Services -> Performance Features -> Dynamic Content Compression for Win 2008 you can refer to: http://blog.wassupy.com/2009/08/enabling-dynamic-http-compression-in.html

IIS JSON
- Reply
yanuar

1 Post

Re: How do I get IIS7 to compress json / asmx webservices?

Dec 19, 2012 02:59 AM|LINK

I have a same problem with this, applicationHost.config has been modified and applicationPool has been recycled, iis server has been restarted, but all of them cannot solve this problem, there i miss something? anyone can help me too?