clean up status on close for several core nodes.

nodes/core/core/80-function.js

@@ -222,6 +222,7 @@ module.exports = function(RED) {
                 while (node.outstandingIntervals.length > 0) {
                     clearInterval(node.outstandingIntervals.pop())
                 }
+                this.status({});
             })
         } catch(err) {
             // eg SyntaxError - which v8 doesn't include line number information

nodes/core/io/21-httprequest.js

@@ -205,6 +205,10 @@ module.exports = function(RED) {
             }
             req.end();
         });
+
+        this.on("close",function() {
+            node.status({});
+        });
     }
 
     RED.nodes.registerType("http request",HTTPRequest,{

nodes/core/io/22-websocket.js

@@ -205,11 +205,10 @@ module.exports = function(RED) {
         } else {
             this.error(RED._("websocket.errors.missing-conf"));
         }
-
         this.on('close', function() {
             node.serverConfig.removeInputNode(node);
+            node.status({});
         });
-
     }
     RED.nodes.registerType("websocket in",WebSocketInNode);
 
@@ -252,6 +251,9 @@ module.exports = function(RED) {
                 }
             }
         });
+        this.on('close', function() {
+            node.status({});
+        });
     }
     RED.nodes.registerType("websocket out",WebSocketOutNode);
 }

nodes/core/storage/50-file.js

@@ -91,6 +91,9 @@ module.exports = function(RED) {
                 }
             }
         });
+        this.on('close', function() {
+            node.status({});
+        });
     }
     RED.nodes.registerType("file",FileNode);
 
@@ -127,6 +130,9 @@ module.exports = function(RED) {
                 });
             }
         });
+        this.on('close', function() {
+            node.status({});
+        });
     }
     RED.nodes.registerType("file in",FileInNode);
 }