What are some effective strategies for bypassing CORS requirements in Vue client-side and server-side applications?

I found this amazing MEVN stack tutorial that I've been following:

MEVN Stack Tutorial

The tutorial is about creating a blog post app, where the client side is built using Vue (referred to as app A) and the backend is built on Express.js providing data from MongoDB through a JSON Rest API (referred to as app B). However, it uses the cors package in app B to allow cross-origin requests, which poses a security risk by allowing third-party access to its APIs directly.

I'm looking for a way to eliminate the need for CORS in app B. One solution could be to have app A's frontend JavaScript not make calls directly to app B, but instead call app A's backend, which then makes the necessary calls to app B after validating the request parameters. But how would I go about implementing this, especially since the express-based app.js file in app A exists within the Vue directory structure?

Currently, I'm using axios for HTTP requests in app A and I'm unsure of how to use it to solve the CORS problem mentioned above.

javascriptexpressvue.jscorsaxios

Answer №1

What are your thoughts on the potential security implications of CORS? While CORS is a popular tool in various applications, it can pose a security risk if not properly managed. By carefully selecting allowed origins and methods, you can mitigate this risk.

To completely avoid CORS issues, one solution is hosting all related applications under the same domain. This ensures that requests are no longer considered Cross Origin as they share the same origin.

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