`window` is not defined in worker file

This is not really an issue with vue-pdf but I ran into this recently and tought it may be worth sharing. When using vue-pdf with Webpack 4 (e.g. a project created by vue-cli v3) the dev build with hot reloading gave the following error message:

window is not defined in worker[hash].js

and vue-pdf did not display anything.

This only occurs on development builds with hot reloading, on production it is fine. After investigating I found the following issue to be the reason why this happens: https://github.com/webpack/webpack/issues/6642

Until this is fixed in webpack the following workaround did work for me. In the Webpack config set the following option:

 output: {
  globalObject: 'this'
}

[coreycoburn]

In Nuxt, you can get this to work in nuxt.config.js:

extend(config, ctx) {
  config.output.globalObject = 'this'
}

[nothingismagick]

If you end up here via the Quasar framework, you can use chainWebpack in your quasar.conf.js:

    build: {
      chainWebpack(chain) {
        chain.output.set('globalObject', 'this')