句柄响应-SyntaxError：使用模式“ no-cors”时输入意外结束

我尝试了对REST-API的ReactJS提取调用，并想处理响应。该呼叫有效，我得到响应，我可以在Chrome Dev Tools中看到该响应：

function getAllCourses() {
fetch('http://localhost:8080/course', {
    method: 'POST',
    mode: 'no-cors',
    credentials: 'same-origin',
    headers: {
        'Accept': 'application/json',
        'Content-Type': 'application/json',
    },
    body: JSON.stringify({
        objectClass: 'course',
        crud: '2'
    })
}).then(function (response) {
    console.log(response);
    return response.json();

}).catch(function (err) {
    console.log(err)
});
}

当我尝试处理响应时，出现“ SyntaxError：输入意外结束”

return response.json();

console.log看起来像这样：

我的响应JSON看起来像这样，它是有效的，我用jsonlint检查了它：

[
  {
    "0x1": {
      "users": [],
      "lectures": [],
      "owner": "0x2",
      "title": "WWI 14 SEA",
      "description": null,
      "objectClass": "course",
      "id": "course_00001"
    },
    "0x2": {
      "username": "system",
      "lectures": [],
      "course": null,
      "solutions": [],
      "exercises": [],
      "roles": [
        "0x3",
        "0x4",
        "0x5"
      ],
      "objectClass": "user",
      "id": "user_00001"
    },
    "0x3": {
      "roleName": "ROLE_ADMIN",
      "objectClass": "role",
      "id": "role_00001"
    },
    "0x4": {
      "roleName": "ROLE_STUDENT",
      "objectClass": "role",
      "id": "role_00002"
    },
    "0x5": {
      "roleName": "ROLE_DOCENT",
      "objectClass": "role",
      "id": "role_00003"
    }
  }
]