save html with inline css server side

hello all , I am using version 0.15.3 and want to save html data with inline css to server side

 var editor = grapesjs.init({
                            height: '100%',
                            forceClass: false,
                            noticeOnUnload: 0,
                            container: '#gjs',
                            fromElement: true,
                            plugins: ['grapesjs-mjml'],
                            pluginsOpts: {
                                'grapesjs-mjml': {}
                            },
                            storageManager: {
                                autosave: false,
                                setStepsBeforeSave: 1,
                                storeHtml: 1,
                                type: 'remote',
                                urlStore: 'SERVER-URL',
                                contentTypeJson: false,
                                params:{'html':localStorage.getItem("htmldata")}
                            }
                        });
            console.log('version', grapesjs.version)

            editor.Panels.addButton('options', 
                [{
                    id: 'save-db',
                    className: 'fa fa-floppy-o',
                    command: 'save-db',
                    attributes: {title: 'Save DB'}
                }]
            );


            // var commands = editor.Commands;
            editor.Commands.add('save-db', {
                run: function (editor, sender) {
                    //sender && sender.set('active', 0); // turn off the button
                    editor.store();
                    var htmldata = editor.runCommand('mjml-get-code').html;
                    localStorage.clear();
                    localStorage.setItem("htmldata", htmldata);
                }
            });

            editor.runCommand('save-db');

this is my code where I am storing html to local-storage first and than sending it using storage manager . I want to know is there any way where I can send html with inline css without storing it into local-storage or by using ajax , I have already checked some solution where ajax is used but in my case ajax is not working don't know why? Can any one please help me ...