问题
Thats my question, I'm catching a few WCF exceptions on my client and the ProtocolException always has html code in its message.
Could I assume that will happen every time? For what I see the real good message comes in the inner exception, could I just discard the ProtocolException message and show the user the message from the inner exception?
回答1:
No, it doesn't always contain HTML in the message. Generally if there is HTML it's because the server your talking with (or through) hasn't understood (or blocked) the request, and has replied with an HTML explanation as to why. The message is useful for figuring out the problem.
Unfortunately that isn't the only time you'll see ProtocolExceptions, so you can't assume it will always contain HTML.
来源：https://stackoverflow.com/questions/998065/does-system-servicemodel-protocolexception-always-have-html-code-in-its-message