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500 Err if you modify Web.config (WCF service applet)

yarbrough40
320 100+
Can anyone tell me what might be the cause here? Here's the Scenario.
I have a website hosted with Arvixe.com and my website has aspx pages as well as a WCF json service (simple enough)

- All is running fine (aspx pages and WCF calls all return without error)
1) I make an innocuous change to the web.config (i.e. add a 'space' to a commented area)
2) move the newly modified web.config from my machine to Arvixe via ftp
3) call one of the aspx pages <-- no errors
4) call one of the WCF rest calls <-- ERR: "Failed to load resource: the server responded with a status of 500 (Internal Server Error)"
5) Oddly I can get it back to normal by calling one of the WCF methods via REST using javascript ajax - and then make another in a browser url. - after that the error goes away and all seems fine once again until I make another web.config modification.

Any Thoughts?
Apr 27 '16 #1
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