Enabling Glimpse causes "Page not available"

Question

To get some diagnostics for our MVC4 application (with an WebRole for Microsoft Azure) we installed Glimpse through NuGet.

Everything went fine, but when I enable Glimpse through the ~/Glimpse.axd page our application is completely unreachable. On every request we get the message "This Webpage is not available" (Chrome).

In the output window in Visual Studio 2013 I saw an error message which suggests to disable async support through the web.config:

<appSettings>
    <add key="Glimpse:DisableAsyncSupport" value="true"/>
</appSettings>

Unfortunately this is not helping. When we turn off Glimpse everything is just fine.

How can I find out what the problem is?

Update

The logs shows me this warning:

WARN | Unable to locate '</body>' with content encoding 'Unicode (UTF-8)' for request. The response may be compressed or the markup may actually be missing a '</body>' tag.

Answer 1

Found my solution on the troubleshooting page of Glimpse.

In short, url compression was applied so had to disable this in the web.config:

<system.webServer>
    <urlCompression doDynamicCompression="true" dynamicCompressionBeforeCache="false" />
</system.webServer>