Fixes #2243 - Update URL rewrite rules so that API calls only match if path starts with /api and not just contains 'api/' (#2246)

Author: ehamai

AzureFunctions/Web.config

@@ -64,7 +64,7 @@
           <action type="Redirect" url="https://{HTTP_HOST}/{R:1}" redirectType="Permanent" />
         </rule>
         <rule name="ignoreApiRoutes" stopProcessing="true">
-          <match url="api/.*" negate="false" />
+          <match url="^api/.*" negate="false" />
           <action type="None" />
         </rule>
         <rule name="ignoreFavicon" stopProcessing="true">