@quasar/app-webpack/lib/modes/pwa/plugin.webpack.workbox-warning.js

Quasar Framework App CLI with Webpack

const msgRE = /^(GenerateSW|InjectManifest) has been called multiple times/

const filterFn = warn =>
  !(warn.name === 'Error' && msgRE.test(warn.message) === true)

module.exports.WorkboxWarningPlugin = class WorkboxWarningPlugin {
  apply(compiler) {
    compiler.hooks.done.tap('pwa-custom-sw-warning', stats => {
      stats.compilation.warnings = stats.compilation.warnings.filter(filterFn)
    })
  }
}