SyntaxError: JSON.parse: JSON 数据的第 1 行第 1 列的数据意外结束，使用 fetch

Question

I'm using this function

obtenerCursos:async function(){
                    const data = await fetch('cursos.json', {mode: 'no-cors'});
                    const cursos = await data.json();
                    commit('llenarCursos',cursos)
                }

I try to get data from local json file:

[
    {"nombre":"item1", "id":1},
    {"nombre":"item2", "id":2},
    {"nombre":"item3", "id":3}
]

But I'm not getting json data I get a object

Response
​
body: null
​
bodyUsed: false
​
headers: Headers
​
ok: false
​
redirected: false
​
status: 0
​
statusText: ""
​
type: "opaque"
​
url: ""

I'm not sure about what I'm doing wrong

Answer 1

type: "opaque"

This means that JavaScript cannot see the content of the response.

Since JS can't see the content, the content it can see has zero length. So it gets to the end of the content before finding anything that would make it valid JSON.

It is opaque because you said:

 mode: 'no-cors'

Don't do that.