All Inertia requests must receive a valid Inertia response, however a plain JSON response was received [closed]

Question

i am trying to understand and resolve this InertiaJs error without success i hope i can get some help here.

Answer 1

Late to the party replying, but in your controller:

return Redirect::back()->with([
  'data' => 'Something you want to pass to front-end',
])

Then on the front end:

this.form.post(route(...), {
  onSuccess: (res) => {
    this.form.data = res.props.data
  },
})

this.form, in my case, is set as the following in data(){ ...

form: this.$inertia.form({
  _method: 'PUT',
}),

(Adjust to your requirements)

data exists within the props response after a successful form update via Inertia. Helped me when I was digging around for an answer anyway.

This answer helped me get here, although not quite the same. Hope my answer helps!

Answer 2

Maybe your are using this.$inertia, it waits for Inertia response;

this.$inertia.get(route('example'))
  .then(res => {
     console.log(res)
  })

Please use axios instead

axios.get(route('example'))
  .then(res => {
     console.log(res)
  })