javascript - Node JS redirects give me a bunch of html text -

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Ask questions about nodes and redirects, and maybe rendering.

app.js

In my app js, I have these codes that work well. 

  app.get ('/ dashboard', routes.dashboard); App.get ('/ error / 404', error.notFound);   
 Then,  
  error.notFound       Increase  
  export.illegal = function (req, res) {var authLevel = ''; Var entityName = ''; Var entityId = ''; Var deviceId = ''; If (req.Session.authorizationLevel) authLevel = req.session.authorizationLevel; If (req.session.name) entityName = req.session.name; If (req.session.entityId) entityId = req.session.entityId; If (req.session.deviceId) deviceId = req.session.deviceId; Res.render ('error / invalid', {title: 'illegal', viewClass: 'illegal', ngController: '', entity name: entity name, entity id: entity id, device id: device id, authorization: level : AuthLevel}); };   
  Routes Dashboard   
 You also work while loading it from the URL  
  exports .dashboard = Function (req, res) {// method for authentication, see below. This is giving me the error Authorization Helper.AuthorizationLevels (req, res, 400); Var authLevel = ''; Var entityName = ''; Var entityId = ''; Var deviceId = ''; If (req.Session.authorizationLevel) authLevel = req.session.authorizationLevel; If (req.session.name) entityName = req.session.name; If (req.session.entityId) entityId = req.session.entityId; If (req.session.deviceId) deviceId = req.session.deviceId; Res.render ('dashboard', {title: 'dashboard', visual class: 'dashboard', ng controller: 'dashboard controller', entity name: entity name, entity id: entity id, device id: device id, authorization: Level: authLevel}); };   
 Here's the hard part that gives me some error.  
  Method for authorization, see below it is giving me the error Authorization Helper.AuthorizationLevels (req, res, 400);   
  Authorization Heller   
 This method will check if the user is allowed to view the page or else it will redirect.  > 
  exports.authorizationLevels = function (req, res, levelRequired) {if (req.session.authorizationLevel & lt; levelRequired ||! Req.session.authorizationLevel) {// user is not allowed to view page Is an invalid redirect page, res.redirect ('/ error / 401'); }}   
 The problem is, everything works properly on this res.redirect ('/ error / 401') and sometimes, on the server, this page But instead, this will provide a full bunch of HTML text and  some headers! !  
 Enter image details here  
 Please help!   
 
 
 You  
  export.authorizationLevels = function (req, res, LevelRequired) {If (req.session.authorizationLevel & lt; levelRequired ||! Req.session.authorizationLevel) {// user is not allowed to view page, invalid page res.redirect ('/ error / 401 '); }}   
 to  
  export.authorizationLevels = function (req, res, levelRequired) {if (req.session.authorizationLevel & lt; levelRequired || ! Req.session.authorizationLevel) {// User does not have permission to view page, Restricted to illegal page. Rdirect ('/ error / 401'); return false; } Back true; }   
 and  
  authorization. Helper.authorizationLevels (req, res, 400);     
  if (authorization. Assistant authorization level (request, ridge, 400)) return;   
 This will prevent rendering your dashboard in case of unauthorized access.  
 In addition, you may want to consider centralizing your error handling so that you have an error handler middleware ( (err, req, res, next) ) and there Rendering error templates (whereas just  forward (401);  and errors in your root handler), as long as you have them in the  / error / 401  Do not want to see

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