How can I disable source maps in production for a vue.js app?

In Vue.js, source maps are primarily used in development environments to assist developers in debugging code. However, in production environments, for security and performance reasons, it is typically necessary to disable source maps.

1. Modify the vue.config.js file: First, ensure that your project root directory contains a vue.config.js configuration file. If not, you need to create one.

2. Set the productionSourceMap option to false: In the vue.config.js file, you can disable source maps for production by setting the productionSourceMap option to false. This will prevent Vue CLI from generating .map files during the production build.

javascript
// vue.config.js
module.exports = {
  // Disable source maps for production
  productionSourceMap: false,
};

1. Rebuild the application: After modifying the configuration, you need to rebuild your application. This can be done by running the following command:

bash
npm run build

or if you are using yarn:

bash
yarn build

This command will generate the production version of the code based on the configuration in vue.config.js.

Suppose I am working on an online banking application where we prioritize application security and loading speed. During one iteration, we noticed that the production application included source maps, which could potentially assist attackers in analyzing our code structure. To resolve this issue, I disabled the source maps according to the above steps and redeployed the application automatically via the CI/CD pipeline. This change effectively reduced security risks and improved the application's loading speed.