cm-web-legacy/public/cropperjs/index.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="utf-8">
    <meta http-equiv="x-ua-compatible" content="ie=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <title>Cropper.js</title>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/css/bootstrap.min.css" crossorigin="anonymous">
    <link rel="stylesheet" href="/assets/css/cropper/cropper.min.css">
    <style>
        .label {
            cursor: pointer;
        }
        
        .progress {
            display: none;
            margin-bottom: 1rem;
        }
        
        .alert {
            display: none;
        }
        
        .img-container img {
            max-width: 100%;
        }
    </style>
</head>

<body>
    <div class="container">
        <h1>Upload cropped image to server</h1>
        <label class="label" data-toggle="tooltip" title="Change your avatar">
      <img class="rounded" id="avatar" src="https://avatars0.githubusercontent.com/u/3456749?s=160" alt="avatar">
      <input type="file" class="sr-only" id="input" name="image" accept="image/*">
    </label>
        <div class="progress">
            <div class="progress-bar progress-bar-striped progress-bar-animated" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100">0%</div>
        </div>
        <div class="alert" role="alert"></div>
        <div class="modal fade" id="modal" tabindex="-1" role="dialog" aria-labelledby="modalLabel" aria-hidden="true">
            <div class="modal-dialog" role="document">
                <div class="modal-content">
                    <div class="modal-header">
                        <h5 class="modal-title" id="modalLabel">Crop the image</h5>
                        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
              <span aria-hidden="true">&times;</span>
            </button>
                    </div>
                    <div class="modal-body">
                        <div class="img-container">
                            <img id="image" src="https://avatars0.githubusercontent.com/u/3456749">
                        </div>
                    </div>
                    <div class="modal-footer">
                        <button type="button" class="btn btn-secondary" data-dismiss="modal">Cancel</button>
                        <button type="button" class="btn btn-primary" id="crop">Crop</button>
                    </div>
                </div>
            </div>
        </div>
    </div>
    <script src="https://code.jquery.com/jquery-3.4.1.min.js" crossorigin="anonymous"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.bundle.min.js" crossorigin="anonymous"></script>
    <script src="/assets/js/cropper/cropper.min.js"></script>
    <script>
        window.addEventListener('DOMContentLoaded', function() {
            var avatar = document.getElementById('avatar');
            var image = document.getElementById('image');
            var input = document.getElementById('input');
            var $progress = $('.progress');
            var $progressBar = $('.progress-bar');
            var $alert = $('.alert');
            var $modal = $('#modal');
            var cropper;

            $('[data-toggle="tooltip"]').tooltip();

            input.addEventListener('change', function(e) {
                var files = e.target.files;
                var done = function(url) {
                    input.value = '';
                    image.src = url;
                    $alert.hide();
                    $modal.modal('show');
                };
                var reader;
                var file;
                var url;

                if (files && files.length > 0) {
                    file = files[0];

                    if (URL) {
                        done(URL.createObjectURL(file));
                    } else if (FileReader) {
                        reader = new FileReader();
                        reader.onload = function(e) {
                            done(reader.result);
                        };
                        reader.readAsDataURL(file);
                    }
                }
            });

            $modal.on('shown.bs.modal', function() {
                cropper = new Cropper(image, {
                    aspectRatio: 1,
                    viewMode: 3,
                });
            }).on('hidden.bs.modal', function() {
                cropper.destroy();
                cropper = null;
            });

            document.getElementById('crop').addEventListener('click', function() {
                var initialAvatarURL;
                var canvas;

                $modal.modal('hide');

                if (cropper) {
                    canvas = cropper.getCroppedCanvas({
                        width: 160,
                        height: 160,
                    });
                    initialAvatarURL = avatar.src;
                    avatar.src = canvas.toDataURL();
                    $progress.show();
                    $alert.removeClass('alert-success alert-warning');
                    canvas.toBlob(function(blob) {
                        var formData = new FormData();

                        formData.append('avatar', blob, 'avatar.jpg');
                        $.ajax('https://jsonplaceholder.typicode.com/posts', {
                            method: 'POST',
                            data: formData,
                            processData: false,
                            contentType: false,

                            xhr: function() {
                                var xhr = new XMLHttpRequest();

                                xhr.upload.onprogress = function(e) {
                                    var percent = '0';
                                    var percentage = '0%';

                                    if (e.lengthComputable) {
                                        percent = Math.round((e.loaded / e.total) * 100);
                                        percentage = percent + '%';
                                        $progressBar.width(percentage).attr('aria-valuenow', percent).text(percentage);
                                    }
                                };

                                return xhr;
                            },

                            success: function() {
                                $alert.show().addClass('alert-success').text('Upload success');
                            },

                            error: function() {
                                avatar.src = initialAvatarURL;
                                $alert.show().addClass('alert-warning').text('Upload error');
                            },

                            complete: function() {
                                $progress.hide();
                            },
                        });
                    });
                }
            });
        });
    </script>
</body>

</html>