Improve error catching to prevent silent errors

grade.php

@@ -86,13 +86,12 @@ $sourcedid = htmlspecialchars($sourcedid);
 
 $operation = 'replaceResultRequest';
 $postBody = str_replace(
-	array('SOURCEDID', 'GRADE', 'OPERATION','MESSAGE'), 
-	array($sourcedid, $grade, $operation, uniqid()), 
+	array('SOURCEDID', 'GRADE', 'OPERATION','MESSAGE'),
+	array($sourcedid, $grade, $operation, uniqid()),
 	getPOXGradeRequest());
 
-$response = sendOAuthBodyPOST($method, $endpoint, $oauth_consumer_key, $oauth_consumer_secret, $content_type, $postBody);
-
-try { 
+try {
+    $response = sendOAuthBodyPOST($method, $endpoint, $oauth_consumer_key, $oauth_consumer_secret, $content_type, $postBody);
     $retVal = parseResponse($response);
 } catch(Exception $e) {
     echo json_encode(Array("status" => "failure", "detail" => $e->getMessage(), "response" => $response));