[Vuejs]-Loading Plaid JS from CDN in VueJS

The Plaid CDN script creates a global variable: window.Plaid. However, your component incorrectly refers to it via this.Plaid. In the Vue SFC, this is the component instance, which only contains its own properties declared in the component definition. this does not include global variables from window.

The solution is to use window.Plaid:

export default {
  data() {
    return {
      pl: window.Plaid,
    }
  }
}

demo