1👍
✅
WARNING: the default configuration filters potentially dangerous URLs. The following will disable this protection. Do that knowingly.
You could replace this portion of the web.Config
<system.web>
<compilation debug="true" targetFramework="4.0" />
</system.web>
by this one
<system.web>
<httpRuntime requestValidationMode="2.0" requestPathInvalidCharacters="" />
<compilation debug="true" targetFramework="4.0" />
</system.web>
Explanations are available here: https://msdn.microsoft.com/en-us/library/e1f13641(v=vs.100).aspx
You can edit the web.Config file from testApp.scm.azurewebsites.net (same credentials as for portal.azure.com), Debug Console, CMD, then cd site\wwwroot
. Scroll down to web.Config, you’ll find a logo with a pen on the left that will open a text editor in the browser.
Source:stackexchange.com