Extend mock file with JS test

mock_data/block_data/follow_op/mock_block_data_follow.json

@@ -280,6 +280,17 @@
               "json": "[\"follow\",{\"follower\":\"tester1\",\"following\":[\"tester7\", \"<script>alert('hello world');</script>\"],\"what\":[\"blog\"]}]"
             }
           },
+          {
+            "type": "custom_json_operation",
+            "value": {
+              "required_auths": [],
+              "required_posting_auths": [
+                "tester1"
+              ],
+              "id": "follow",
+              "json": "[\"follow\",{\"follower\":\"tester1\",\"following\":[\"tester7\", \"<script>alert('hello world');</script>\"],\"what\":[\"blog\"]}]"
+            }
+          },
           {
             "type": "custom_json_operation",
             "value": {
@@ -442,6 +453,17 @@
               "id": "follow",
               "json": "[\"follow\",{\"follower\":\"tester1\",\"following\":[\"tester3\", {\"gtg\":\"gtg\"}],\"what\":[\"blog\"]}]"
             }
+          },
+          {
+            "type": "custom_json_operation",
+            "value": {
+              "required_auths": [],
+              "required_posting_auths": [
+                "tester1"
+              ],
+              "id": "follow",
+              "json": "[\"follow\",{\"follower\":\"tester1\",\"following\":[\"tester7\", \"<script>alert('hello world');</script>\"],\"what\":[\"blog\"]}]"
+            }
           }
         ]
       }