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SignalR - Real-time Application Development - Second Edition by Einar Ingebrigtsen

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Digging deeper into the communication

Logging is really helpful and can really save you a lot of time to figure out what is going on. However, sometimes, you need to go even deeper. At times, you need to look at the raw traffic. There are a few ways of doing this.

Looking under the cover with Fiddler

A popular, free, and very good debugging tool to debug HTTP traffic is Fiddler. You can download it for free at http://www.telerik.com/fiddler. It gives you the opportunity to monitor all HTTP requests happening on your computer.

Fiddler sets itself as a proxy between all traffic and in order to get the best experience from it, you need to enable streams, otherwise SignalR will fall back to long-polling, but not immediately (typically after 3-5 seconds), ...

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