Glimpse icon does not appear

Question

I'm trying to use Glimpse for MVC 4. My issue is that, although I have followed the installation instructions on the Glimpse site, the Glimpse icon does not appear on my site.

Basically I created a new MVC 4 project and added NuGet package Glimpse.MVC4. Here is my web.config file:

<?xml version="1.0" encoding="utf-8"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
  <configSections>
    <section name="glimpse" type="Glimpse.Core.Configuration.Section, Glimpse.Core" />
  </configSections>
  <appSettings>
    <add key="webpages:Version" value="2.0.0.0" />
    <add key="webpages:Enabled" value="false" />
    <add key="PreserveLoginUrl" value="true" />
    <add key="ClientValidationEnabled" value="true" />
    <add key="UnobtrusiveJavaScriptEnabled" value="true" />
  </appSettings>
  <system.web>
    <httpRuntime targetFramework="4.5" />
    <compilation debug="true" targetFramework="4.5" />
    <pages>
      <namespaces>
        <add namespace="System.Web.Helpers" />
        <add namespace="System.Web.Mvc" />
        <add namespace="System.Web.Mvc.Ajax" />
        <add namespace="System.Web.Mvc.Html" />
        <add namespace="System.Web.Routing" />
        <add namespace="System.Web.WebPages" />
      </namespaces>
    </pages>
    <!-- Glimpse: This can be commented in to add additional data to the Trace tab when using WebForms
        <trace writeToDiagnosticsTrace="true" enabled="true" pageOutput="false"/> -->
    <httpModules>
      <add name="Glimpse" type="Glimpse.AspNet.HttpModule, Glimpse.AspNet" />
    </httpModules>
    <httpHandlers>
      <add path="glimpse.axd" verb="GET" type="Glimpse.AspNet.HttpHandler, Glimpse.AspNet" />
    </httpHandlers>
  </system.web>
  <system.webServer>
    <handlers>
      <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
      <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
      <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
      <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
      <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" />
      <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
      <add name="Glimpse" path="glimpse.axd" verb="GET" type="Glimpse.AspNet.HttpHandler, Glimpse.AspNet" preCondition="integratedMode" />
    </handlers>
    <validation validateIntegratedModeConfiguration="false" />
    <modules>
      <add name="Glimpse" type="Glimpse.AspNet.HttpModule, Glimpse.AspNet" preCondition="integratedMode" />
    </modules>
  </system.webServer>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  <glimpse defaultRuntimePolicy="On" endpointBaseUri="~/Glimpse.axd">
    <!-- If you are having issues with Glimpse, please include this. It will help us figure out whats going on. -->
      <logging level="Trace" />
  </glimpse>
</configuration>

When I run my site, I navigate to http://localhost:12345/glimpse.axd and click the Turn On Glimpse button, which looks to create a cookie on my site (which I see via Chrome developer toolbar). When I navigate back to http://12345 I do not see any icon appear in the bottom right of the page, as described in the instructions.

I've looked at various StackOverflow questions about this scenario, but a lot mention the old /Glimpse/Config way of doing things. As I've not done anything out of the ordinary, I'm wondering whether I've just missed a step?

EDIT:

Huh, I hadn't noticed I'd turned on the logging. OK, now things are clearer:

2013-04-02 21:42:09.5624 | DEBUG | get_Binders method of type 'System.Web.Mvc.Async.AsyncControllerActionInvoker' is not proxyable. | 
    2013-04-02 21:42:09.5624 | DEBUG | set_Binders method of type 'System.Web.Mvc.Async.AsyncControllerActionInvoker' is not proxyable. | 
    2013-04-02 21:42:09.5624 | DEBUG | Methods inspected via proxy generation hook on type 'System.Web.Mvc.Async.AsyncControllerActionInvoker'. | 
    2013-04-02 21:42:09.6064 | DEBUG | Methods inspected via proxy generation hook on type 'System.Web.Mvc.IActionFilter'. | 
    2013-04-02 21:42:09.6064 | DEBUG | Methods inspected via proxy generation hook on type 'System.Web.Mvc.IResultFilter'. | 
    2013-04-02 21:42:09.6064 | DEBUG | Methods inspected via proxy generation hook on type 'System.Web.Mvc.IAuthorizationFilter'. | 
    2013-04-02 21:42:09.6064 | DEBUG | Methods inspected via proxy generation hook on type 'System.Web.Mvc.IExceptionFilter'. | 
    2013-04-02 21:42:09.6064 | DEBUG | Methods inspected via proxy generation hook on type 'System.Web.Mvc.IExceptionFilter'. | 
    2013-04-02 21:42:09.6364 | DEBUG | Methods inspected via proxy generation hook on type 'System.Web.Mvc.IValueProvider'. | 
    2013-04-02 21:42:09.6364 | DEBUG | Methods inspected via proxy generation hook on type 'System.Web.Mvc.IUnvalidatedValueProvider'. | 
    2013-04-02 21:42:09.6364 | DEBUG | Methods inspected via proxy generation hook on type 'System.Web.Mvc.IValueProvider'. | 
    2013-04-02 21:42:09.6364 | DEBUG | Methods inspected via proxy generation hook on type 'System.Web.Mvc.IUnvalidatedValueProvider'. | 
    2013-04-02 21:42:09.6504 | DEBUG | Methods inspected via proxy generation hook on type 'System.Web.Mvc.IValueProvider'. | 
    2013-04-02 21:42:10.0504 | DEBUG | Methods inspected via proxy generation hook on type 'System.Web.Mvc.IView'. | 
    2013-04-02 21:42:10.0504 | INFO | Replaced IView of type 'System.Web.Mvc.RazorView', named 'Index', with proxy implementation. | 
    2013-04-02 21:42:10.2524 | WARN | Unable to locate '</body>' with content encoding 'Unicode (UTF-8)'. Response may be compressed. | 
    2013-04-02 21:42:13.6916 | DEBUG | RuntimePolicy set to 'ExecuteResourceOnly' by IRuntimePolicy of type 'Glimpse.Core.Policy.GlimpseResourcePolicy' during RuntimeEvent 'ExecuteResource'. | 
    2013-04-02 21:42:15.0587 | DEBUG | RuntimePolicy set to 'ExecuteResourceOnly' by IRuntimePolicy of type 'Glimpse.Core.Policy.GlimpseResourcePolicy' during RuntimeEvent 'ExecuteResource'. | 
    2013-04-02 21:42:17.4918 | INFO | Replaced IView of type 'System.Web.Mvc.RazorView', named 'Index', with proxy implementation. | 
    2013-04-02 21:42:17.4918 | WARN | Unable to locate '</body>' with content encoding 'Unicode (UTF-8)'. Response may be compressed. | 

Answer 1

I was simply missing a <body> tag in the HTML. The icon appears once I added the missing tag.