Disable CORS in ExpressJS












0















I have two nodeJS/express applications. For simplicity, I'll say one is hosted on www.example1.com and the other is hosted on www.example2.com. I want to send a POST request from www.example2.com to wwww.example1.com. I do this with the following code:



<form action="www.example1.com" method="POST">
<input type="text" name="name"></input>
<input type="submit" value="Submit"></input>
</form>


I only want this to accept requests from www.example1.com. How do I do this? Also, currently, when I do this post request, the POST request is actually going through. I don't understand why. Are there no default settings to prevent against the cross domain requests? How can I put up these settings.



Any help would be greatly appreciated!



Thanks!










share|improve this question



























    0















    I have two nodeJS/express applications. For simplicity, I'll say one is hosted on www.example1.com and the other is hosted on www.example2.com. I want to send a POST request from www.example2.com to wwww.example1.com. I do this with the following code:



    <form action="www.example1.com" method="POST">
    <input type="text" name="name"></input>
    <input type="submit" value="Submit"></input>
    </form>


    I only want this to accept requests from www.example1.com. How do I do this? Also, currently, when I do this post request, the POST request is actually going through. I don't understand why. Are there no default settings to prevent against the cross domain requests? How can I put up these settings.



    Any help would be greatly appreciated!



    Thanks!










    share|improve this question

























      0












      0








      0








      I have two nodeJS/express applications. For simplicity, I'll say one is hosted on www.example1.com and the other is hosted on www.example2.com. I want to send a POST request from www.example2.com to wwww.example1.com. I do this with the following code:



      <form action="www.example1.com" method="POST">
      <input type="text" name="name"></input>
      <input type="submit" value="Submit"></input>
      </form>


      I only want this to accept requests from www.example1.com. How do I do this? Also, currently, when I do this post request, the POST request is actually going through. I don't understand why. Are there no default settings to prevent against the cross domain requests? How can I put up these settings.



      Any help would be greatly appreciated!



      Thanks!










      share|improve this question














      I have two nodeJS/express applications. For simplicity, I'll say one is hosted on www.example1.com and the other is hosted on www.example2.com. I want to send a POST request from www.example2.com to wwww.example1.com. I do this with the following code:



      <form action="www.example1.com" method="POST">
      <input type="text" name="name"></input>
      <input type="submit" value="Submit"></input>
      </form>


      I only want this to accept requests from www.example1.com. How do I do this? Also, currently, when I do this post request, the POST request is actually going through. I don't understand why. Are there no default settings to prevent against the cross domain requests? How can I put up these settings.



      Any help would be greatly appreciated!



      Thanks!







      node.js express post cross-domain






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 22 '18 at 20:13









      CodeRocksCodeRocks

      515




      515
























          1 Answer
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          the cors middleware package is the standard way to do this



          https://www.npmjs.com/package/cors



          e.g:



          const allowedOrigins = ['www.example1.com',
          'www.example2.com'];
          app.use(cors({
          origin: function(origin, callback){
          if(!origin) return callback(null, true);
          if(allowedOrigins.indexOf(origin) === -1){
          const msg = 'The CORS policy for this site does not allow access from the specified Origin.';
          return callback(new Error(msg), false);
          }
          return callback(null, true);
          }

          }));





          share|improve this answer
























          • I am using csurf and cookie-parser, but only want to exclude the example2.com from fulfilling this requirement

            – CodeRocks
            Nov 22 '18 at 22:34











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          1 Answer
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          active

          oldest

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          0














          the cors middleware package is the standard way to do this



          https://www.npmjs.com/package/cors



          e.g:



          const allowedOrigins = ['www.example1.com',
          'www.example2.com'];
          app.use(cors({
          origin: function(origin, callback){
          if(!origin) return callback(null, true);
          if(allowedOrigins.indexOf(origin) === -1){
          const msg = 'The CORS policy for this site does not allow access from the specified Origin.';
          return callback(new Error(msg), false);
          }
          return callback(null, true);
          }

          }));





          share|improve this answer
























          • I am using csurf and cookie-parser, but only want to exclude the example2.com from fulfilling this requirement

            – CodeRocks
            Nov 22 '18 at 22:34
















          0














          the cors middleware package is the standard way to do this



          https://www.npmjs.com/package/cors



          e.g:



          const allowedOrigins = ['www.example1.com',
          'www.example2.com'];
          app.use(cors({
          origin: function(origin, callback){
          if(!origin) return callback(null, true);
          if(allowedOrigins.indexOf(origin) === -1){
          const msg = 'The CORS policy for this site does not allow access from the specified Origin.';
          return callback(new Error(msg), false);
          }
          return callback(null, true);
          }

          }));





          share|improve this answer
























          • I am using csurf and cookie-parser, but only want to exclude the example2.com from fulfilling this requirement

            – CodeRocks
            Nov 22 '18 at 22:34














          0












          0








          0







          the cors middleware package is the standard way to do this



          https://www.npmjs.com/package/cors



          e.g:



          const allowedOrigins = ['www.example1.com',
          'www.example2.com'];
          app.use(cors({
          origin: function(origin, callback){
          if(!origin) return callback(null, true);
          if(allowedOrigins.indexOf(origin) === -1){
          const msg = 'The CORS policy for this site does not allow access from the specified Origin.';
          return callback(new Error(msg), false);
          }
          return callback(null, true);
          }

          }));





          share|improve this answer













          the cors middleware package is the standard way to do this



          https://www.npmjs.com/package/cors



          e.g:



          const allowedOrigins = ['www.example1.com',
          'www.example2.com'];
          app.use(cors({
          origin: function(origin, callback){
          if(!origin) return callback(null, true);
          if(allowedOrigins.indexOf(origin) === -1){
          const msg = 'The CORS policy for this site does not allow access from the specified Origin.';
          return callback(new Error(msg), false);
          }
          return callback(null, true);
          }

          }));






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 22 '18 at 21:07









          CecilCecil

          22625




          22625













          • I am using csurf and cookie-parser, but only want to exclude the example2.com from fulfilling this requirement

            – CodeRocks
            Nov 22 '18 at 22:34



















          • I am using csurf and cookie-parser, but only want to exclude the example2.com from fulfilling this requirement

            – CodeRocks
            Nov 22 '18 at 22:34

















          I am using csurf and cookie-parser, but only want to exclude the example2.com from fulfilling this requirement

          – CodeRocks
          Nov 22 '18 at 22:34





          I am using csurf and cookie-parser, but only want to exclude the example2.com from fulfilling this requirement

          – CodeRocks
          Nov 22 '18 at 22:34


















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