React Js: Uncaught (in promise) SyntaxError: Unexpected token < in JSON at position 0

Add two headers Content-Type and Accept to be equal to application/json.

handleGetJson(){
  console.log("inside handleGetJson");
  fetch(`./fr.json`, {
      headers : { 
        'Content-Type': 'application/json',
        'Accept': 'application/json'
       }

    })
    .then((response) => response.json())
    .then((messages) => {console.log("messages");});
}

Related Posts:

  1. “SyntaxError: Unexpected token < in JSON at position 0"
  2. jQuery AJAX cross domain
  3. Uncaught TypeError: Cannot read property ‘props’ of null
  4. JSON.parse() not working
  5. react router v^4.0.0 Uncaught TypeError: Cannot read property ‘location’ of undefined
  6. SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data
  7. How to allow CORS in react.js?
  8. “NS_ERROR_DOM_BAD_URI: Access to restricted URI denied”
  9. “SyntaxError: Unexpected token < in JSON at position 0"
  10. Invariant Violation: Objects are not valid as a React child
  11. SyntaxError: Unexpected token o in JSON at position 1
  12. syntax error: unexpected token <
  13. SyntaxError: Unexpected token o in JSON at position 1
  14. What is JSONP, and why was it created?
  15. React.js: Set innerHTML vs dangerouslySetInnerHTML
  16. React – uncaught TypeError: Cannot read property ‘setState’ of undefined
  17. Understanding unique keys for array children in React.js
  18. Difference between npx and npm?
  19. Array of JSON Objects
  20. Chrome sendrequest error: TypeError: Converting circular structure to JSON
  21. Fetch: POST JSON data
  22. Reactjs – Form input validation
  23. TypeScript React.FC confusion
  24. How to read an external local JSON file in JavaScript?
  25. SyntaxError: Unexpected token o in JSON at position 1
  26. Loop inside React JSX
  27. Can’t resolve module (not found) in React.js
  28. How to read an external local JSON file in JavaScript?
  29. How to implement navbar using react
  30. Loop inside React JSX
  31. React this.setState is not a function
  32. Console logging for react?
  33. What is the “right” JSON date format?
  34. In reactJS, how to copy text to clipboard?
  35. SyntaxError: Adjacent JSX elements must be wrapped in an enclosing tag
  36. What is the “right” JSON date format?
  37. Infinite Scrolling in Asp.Net MVC with jQuery / AJAX Issues
  38. Setting a backgroundImage With React Inline Styles
  39. Failed to load resource: net::ERR_FILE_NOT_FOUND loading json.js
  40. How to pass props to {this.props.children}
  41. React eslint error missing in props validation
  42. What does on() in JavaScript do?
  43. How to import image (.svg, .png ) in a React Component
  44. Adding images to a Bootstrap Carousel with AJAX
  45. How to refresh a Page using react-route Link
  46. Loading local JSON file
  47. node.js TypeError: path must be absolute or specify root to res.sendFile [failed to parse JSON]
  48. Console is throwing Unterminated JSX contents error
  49. How to scroll to an element?
  50. How to convert selected HTML to Json?
  51. Failed to compile. Module not found: Can’t resolve ‘react-router-dom’
  52. How to add multiple classes to a ReactJS Component?
  53. Warning: findDOMNode is deprecated in StrictMode. findDOMNode was passed an instance of Transition which is inside StrictMode
  54. push object into array
  55. module.exports “Module is not defined”
  56. how to download file in react js
  57. Trying to use fetch and pass in mode: no-cors
  58. React’s setState method with prevState argument
  59. onEnter not called in React-Router
  60. Uncaught TypeError: Cannot read property ‘call’ of undefined at __webpack_require__
  61. Async/await in componentDidMount to load in correct order
  62. Why use Redux over Facebook Flux?
  63. Local package.json exists, but node_modules missing
  64. Access Control Origin Header error using Axios
  65. Refused to execute script, strict MIME type checking is enabled?
  66. jQuery Ajax POST example with PHP
  67. TypeError: res.json is not a function
  68. Can’t perform a React state update on an unmounted component
  69. onClick not working React js
  70. This.props.dispatch not a function – React-Redux
  71. How to add a keyboard listener to my onClick handler?
  72. How to add a keyboard listener to my onClick handler?
  73. React router not showing browser history
  74. JSON.parse unexpected token s
  75. Jest encountered an unexpected token
  76. How to filter JSON Data in JavaScript or jQuery?
  77. Uncaught ReferenceError: React is not defined
  78. What do these three dots in React do?
  79. Expected ‘this’ to be used by class method
  80. Uncaught SyntaxError: Unexpected token with JSON.parse
  81. How do I handle newlines in JSON?
  82. Update style of a component onScroll in React.js
  83. Ajax success function
  84. Correct modification of state arrays in React.js
  85. JSX not allowed in files with extension ‘ .js’ with eslint-config-airbnb
  86. JAX post error : Refused to set unsafe header “Connection”
  87. “React.Children.only expected to receive a single React element child” error when putting and in a
  88. $http.get(…).success is not a function
  89. Await is a reserved word error inside async function
  90. Uncaught SyntaxError: Unexpected end of JSON input at JSON.parse ()
  91. Implementing Isomorphic JavaScript (React JS) in WordPress?
  92. How to use wp_localize_script in custom page template?
  93. Changing the entire control choices using wp.customize with JavaScript
  94. Adding wp_ajax to a theme outside functions.php (on specific template page)
  95. Dynamically insert values in a WordPress SelectControl Options field
  96. var is undefined in a Gutenberg block
  97. Creating a Multi-Level Associative Object Using AJAX
  98. AngularJS with route and JSON API
  99. How do I query posts by a sub value with the API?
  100. Gutenberg core/file add style support in js/ json

Leave a Comment