WCF Service Client The content type text html charset utf-8 of the response message does not match the content type of the binding

Question

I ve got a WCF Service running on my local IIS server  I ve added it as a service reference to a C  Website Project and it adds fine and generates the proxy classes automatically   However  when I try and call any of the service contracts  I get the following error      Description  An unhandled exception occurred during the   execution of the current web  request    Please review the stack trace for more   information about the error and where   it originated in the code       Exception Details  System ServiceModel ProtocolException    The content type text html    charset utf-8 of the response message   does not match the content type of the   binding  application soap xml    charset utf-8   If using a custom   encoder  be sure that the   IsContentTypeSupported method is   implemented properly  The first 1024   bytes of the response were           function   bredir d u r v c  var w h wd hd bi var   b false var p false var   s   300 250 false   250 250 false   240 400 false   336 280 false   180 150 false   468 60 false   234 60 false   88 31 false   120 90 false   120 60 false   120 240 false   125 125 false   728 90 false   160 600 false   120 600 false   300 600 false   300 125 false   530 300 false   190 200 false   470 250 false   720 300 true   500 350 true   550 480 true   if typeof window innerHeight    number   h window innerHeight w window innerWidth  else   if typeof document body offsetHeight    number   h document body offsetHeight w document body offsetWidth  for var   i 0 i     I also have a console application which also communicates with the WCF Service and the console app is able to call methods fine without getting this error   Below are excerpts from my config files   WCF Service Web Config    lt system serviceModel gt      lt services gt         lt service name  ScraperService  behaviorConfiguration  ScraperServiceBehavior  gt            lt endpoint address                       binding  wsHttpBinding                      bindingConfiguration  WSHttpBinding IScraperService                     contract  IScraperService    gt            lt endpoint address  mex                      binding  mexHttpBinding                      contract  IMetadataExchange    gt            lt host gt               lt baseAddresses gt                   lt add baseAddress  http   example com    gt               lt  baseAddresses gt            lt  host gt         lt  service gt      lt  services gt      lt bindings gt          lt wsHttpBinding gt              lt binding name  WSHttpBinding IScraperService                      bypassProxyOnLocal  false  transactionFlow  false                      hostNameComparisonMode  StrongWildcard                      maxBufferPoolSize  2000000  maxReceivedMessageSize  2000000                      messageEncoding  Text  textEncoding  utf-8                      useDefaultWebProxy  true  allowCookies  false  gt                  lt readerQuotas                       maxDepth  2000000  maxStringContentLength  2000000                        maxArrayLength  2000000  maxBytesPerRead  2000000                       maxNameTableCharCount  2000000    gt                  lt reliableSession                       enabled  false  ordered  true  inactivityTimeout  00 10 00    gt                  lt security mode  Message  gt                      lt message clientCredentialType  Windows                              negotiateServiceCredential  true                              algorithmSuite  Default                              establishSecurityContext  true    gt                  lt  security gt               lt  binding gt             lt  wsHttpBinding gt         lt  bindings gt         lt behaviors gt             lt serviceBehaviors gt                 lt behavior name  ScraperServiceBehavior  gt                     lt serviceMetadata httpGetEnabled  true    gt                     lt serviceDebug includeExceptionDetailInFaults  true    gt                 lt  behavior gt             lt  serviceBehaviors gt        lt  behaviors gt   lt  system serviceModel gt    Website Project Service Client Web Config    lt system serviceModel gt      lt bindings gt         lt wsHttpBinding gt             lt binding name  WSHttpBinding IScraperService                 closeTimeout  00 01 00  openTimeout  00 01 00                 receiveTimeout  00 10 00  sendTimeout  00 01 00                bypassProxyOnLocal  false  transactionFlow  false                 hostNameComparisonMode  StrongWildcard                maxBufferPoolSize  524288  maxReceivedMessageSize  65536                 messageEncoding  Text  textEncoding  utf-8                useDefaultWebProxy  true  allowCookies  false  gt                 lt readerQuotas                    maxDepth  32  maxStringContentLength  8192                     maxArrayLength  16384  maxBytesPerRead  4096                     maxNameTableCharCount  16384    gt                 lt reliableSession enabled  false                    ordered  true  inactivityTimeout  00 10 00    gt                 lt security mode  Message  gt                     lt transport clientCredentialType  Windows                          proxyCredentialType  None  realm      gt                     lt message clientCredentialType  Windows                          negotiateServiceCredential  true                         algorithmSuite  Default    gt                 lt  security gt             lt  binding gt          lt  wsHttpBinding gt       lt  bindings gt   lt client gt           lt endpoint name  WSHttpBinding IScraperService              address  http   example com ScraperService svc              binding  wsHttpBinding               bindingConfiguration  WSHttpBinding IScraperService              contract  ScraperService IScraperService   gt              lt identity gt                  lt servicePrincipalName value  host FreshNET-II    gt              lt  identity gt           lt  endpoint gt        lt  client gt   lt  system serviceModel gt    This is my first attempt at creating a WCF so it s all very new  Any help is much appreciated

User · Answer

Hy  In my case this error appeared because the Application pool of the webservice had the wrong 32 64 bit setting  So this error needed the following fix  you go to the IIS  select the site of the webservice   go to Advanced setting and get the application pool  Then go to Application pools  select it  go to  Advanced settings       select the  Enable 32 bit applications  and make it Enable or Disable  according to the 32 64 bit type of your webservice  If the setting is True  it means that it only allows 32 bit applications  so for 64 bit apps you have to make it  Disable   default

User · Answer

I solved this problem by setting UseCookies in web config      lt system web gt       lt sessionState cookieless  UseCookies    gt    and setting enableVersionHeader     lt system web gt       lt httpRuntime targetFramework  4 5 1  enableVersionHeader  false  executionTimeout  1200  shutdownTimeout  1200  maxRequestLength  103424    gt

User · Answer

For me  it was the web app connection string pointing to the wrong database server

User · Answer

X       binding   endPoint get Binding        binding set UseDefaultWebProxy false

User · Answer

If your are using both wshttpbinding along with https request  then i resolved it by using the below configuration change     lt security mode  TransportWithMessageCredential  gt                       lt transport clientCredentialType  None    gt                       lt message clientCredentialType  Certificate    gt                   lt  security gt

User · Answer

An HTML response from the web server normally indicates that an error page has been served instead of the response from the WCF service  My first suggestion would be to check that the user you re running the WCF client under has access to the resource

User · Answer

As with many  in my situation I was also getting this because of an error  And sadly I could just read the CSS of the html error page    The source of my problem was also a rewrite rule on the server  It was rewriting http to https

User · Answer

NOTE  If your target server endpoint is using secure socket layer  SSL  certificate  Change your  config setting from basicHttpBinding to basicHttpsBinding  I am sure  It will resolve your problem

User · Answer

In my WCF serive project this issue is due to Reference of System Web Mvc dll  s different version  So it may be compatibility issue of DLL s different version  When I use  System Web Mvc dll version 5 2 2 0 -  it thorows the Error The content type text html  charset utf-8 of the response message  but when I use System Web Mvc dll version 4 0 0 0 or lower -  it works fine   I don t know the reason of different version DLL s issue but by changing the DLL s verison it works for me   This Error even generate when you add reference of other Project in your WCF Project and this reference project has different version of System Web Mvc DLL or could be any other DLL

User · Answer

I tried all the suggestions above  but what worked in the end was changing the Application Pool  managed pipeline from Integrated mode to Classic mode  It runs in its own application pool - but it was the first  NET 4 0 service - all other servicves are on  NET 2 0 using Integrated pipeline mode  Its just a standard WCF service using is https - but on Server 2008  not R2  - using IIS 7  not 7 5

User · Answer

For me the issue was resolved when I commented the following line in Web config   lt httpErrors errorMode  Detailed    gt

User · Answer

Even if you don t use network proxy  turning  Automatically detect settings  in proxy dialog makes this exception go off

User · Answer

I had a similar situation  but the client config was using a basicHttpBinding  The issue turned out to be that the service was using SOAP 1 2 and you can t specify SOAP 1 2 in a basicHttpBinding  I modified the client config to use a customBinding instead and everything worked  Here are the details of my customBinding for reference  The service I was trying to consume was over HTTPS using UserNameOverTransport    lt customBinding gt       lt binding name  myBindingNameHere  sendTimeout  00 03 00  gt           lt security authenticationMode  UserNameOverTransport  includeTimestamp  false  gt               lt secureConversationBootstrap   gt           lt  security gt           lt textMessageEncoding maxReadPoolSize  64  maxWritePoolSize  16                messageVersion  Soap12  writeEncoding  utf-8  gt               lt readerQuotas maxDepth  32  maxStringContentLength  8192  maxArrayLength  16384                  maxBytesPerRead  4096  maxNameTableCharCount  16384    gt           lt  textMessageEncoding gt           lt httpsTransport manualAddressing  false  maxBufferPoolSize  4194304                maxReceivedMessageSize  4194304  allowCookies  false  authenticationScheme  Basic                bypassProxyOnLocal  false  hostNameComparisonMode  StrongWildcard                keepAliveEnabled  true  maxBufferSize  4194304  proxyAuthenticationScheme  Anonymous                realm    transferMode  Buffered  unsafeConnectionNtlmAuthentication  false                useDefaultWebProxy  true  requireClientCertificate  false    gt       lt  binding gt   lt  customBinding gt

User · Answer

Try browsing to http   localhost ScraperService svc in the web browser on the server hosting the service  using the same Windows credentials that the client normally runs under   I imagine that IIS is displaying an html error message of some description instead of returning xml as expected    This also can occur when you have an http proxy server that performs internet filtering  My experience with ContentKeeper is that it intercepts any http https traffic and blocks it as  Unmanaged Content  - all we get back is an html error message  To avoid this  you can add proxy server exception rules to Internet Explorer so that the proxy doesn t intercept traffic to your site   Control Panel   Internet Options   Connections   LAN Settings   Advanced   Proxy Settings

User · Answer

what s going on is that you re trying to access the service using wsHttpBind  which use secured encrypted messages by default  secured Messages   On other hand the netTcpBind uses Secured encrypted channels   Secured Transport     BUT basicHttpBind  doesn t require any security at all  and can access anonymous  SO  at the Server side  Add Change this into your configuration    lt bindings gt       lt wsHttpBinding gt        lt binding name  wsbind  gt             lt security mode  Message  gt                lt transport clientCredentialType  Windows  proxyCredentialType  None    gt                lt message clientCredentialType  Windows  negotiateServiceCredential  true                              algorithmSuite  Default  establishSecurityContext  true    gt            lt  security gt        lt  binding gt       lt  wsHttpBinding gt   lt  bindings gt    then add change your endpoint to   lt endpoint address    binding  wsHttpBinding  bindingConfiguration  wsbind  name  wshttpbind  contract  WCFService IService   gt     That should do it

User · Answer

You may want to examine the configuration for your service and make sure that everything is ok  You can navigate to web service via the browser to see if the schema will be rendered on the browser    You may also want to examine the credentials used to call the service

User · Answer

My solution was rather simple  backup everything from the application  uninstall it  delete everything from the remaining folders  but not the folders so I won t have to grant the same permissions again  then copy back the files from the backup

User · Answer

I had a similar issue  I resolved it by changing    lt basicHttpBinding gt    to    lt basicHttpsBinding gt    and also changed my URL to use https    instead of http      Also in  lt endpoint gt  node  change  binding  basicHttpBinding     to   binding  basicHttpsBinding    This worked

User · Answer

In my case a URL rewrite rule was messing with my service name  it was rewritten as lowercase and I was getting this error   Make sure you don t lowercase WCF service calls

[c#] WCF Service Client: The content type text/html; charset=utf-8 of the response message does not match the content type of the binding

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