...
constructor(el, connection) {
el.__livewire = this
this.el = el
this.lastFreshHtml = this.el.outerHTML
this.id = this.el.getAttribute('wire:id')
this.checkForMultipleRootElements()
this.connection = connection
const initialData = JSON.parse(this.el.getAttribute('wire:initial-data'))
this.el.removeAttribute('wire:initial-data')
this.fingerprint = initialData.fingerprint // <- Error line
...
constructor(el, connection) {
el.__livewire = this
this.el = el
this.lastFreshHtml = this.el.outerHTML
this.id = this.el.getAttribute('wire:id')
this.checkForMultipleRootElements()
this.connection = connection
const initialData = JSON.parse(this.el.getAttribute('wire:initial-data'))
this.el.removeAttribute('wire:initial-data')
this.fingerprint = initialData.fingerprint // <- Error line