Logging client-side errors

function logError(details) {
  $.ajax({
    type: 'POST',
    url: 'http://mydomain.com/api/1/errors',
    data: JSON.stringify({context: navigator.userAgent, details: details}),
    contentType: 'application/json; charset=utf-8'
  }); 
}

window.onerror = function(message, file, line) {
  logError(file + ':' + line + '\n\n' + message);
};

Let’s keep this short. Too few websites log JavaScript errors. Let’s build a simple system to track client-side errors.

Makes clever use of the window.onerror event

Also comes with example serverside code to actually logging the event serverside

You Really Should Log Client-Side Errors →