# Unable to conect custom node webapp

**URL:** <https://forums.rocket.chat/t/unable-to-conect-custom-node-webapp/7431>\
**Category:** Community Support\
**Created:** [June 30, 2020, 3:51pm UTC](https://forums.rocket.chat/t/unable-to-conect-custom-node-webapp/7431 "2020-06-30T15:51:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![javierhcortes](https://avatars.discourse-cdn.com/v4/letter/j/ac91a4/32.png) [@javierhcortes](https://forums.rocket.chat/u/javierhcortes)\
**Post date:** [June 30, 2020, 3:51pm UTC](https://forums.rocket.chat/t/unable-to-conect-custom-node-webapp/7431/1 "2020-06-30T15:51:43Z")

</div>

hi all. im developing a custom webapp, who connect to my local rocketchat instance.  
in postman and curl i can succesfully login and return success, but in javascript throws an error "Blocked cross-source request: The same source policy does not allow reading of remote resources on [http://localhost:3000/api/v1/login](http://localhost:3000/api/v1/login). (Reason: CORS header ‘Access-Control-Allow-Origin’ not present). How i modify CORS policy in my snap installation?

### Server Setup Information

- Version of Rocket.Chat Server: 3.2.2
- Operating System: ubuntu 20.04
- Deployment Method: snap
- Number of Running Instances: 1
- DB Replicaset Oplog:
- NodeJS Version: 12.8 stable
- MongoDB Version:
- Proxy: ?