has been blocked by CORS policy: No 'Access-Control-Allow-Origin' fetch code example

Example 1: Add no cores to fetch

// There were no quick access to mode and credentials to other fetch answers.
// Data you'll be sending
const data = { funny: "Absolutely not", educational: "yas" }

fetch('https://example.com/api/', {
  method: 'POST', // The method
  mode: 'no-cors', // It can be no-cors, cors, same-origin
  credentials: 'same-origin', // It can be include, same-origin, omit
  headers: {
    'Content-Type': 'application/json', // Your headers
  },
  body: JSON.stringify(data),
}).then(returnedData => {
  // Do whatever with returnedData
}).catch(err => {
  // In case it errors.
})

Example 2: Access to fetch at 'https://api.myip.com/' from origin 'http://localhost:8000' has been blocked by CORS policy: No 'Access-

fetch('http://localhost:8080/posts', { mode: 'no-cors' });

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Javascript Example

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