spforms

Sample use (tested with for SharePoint Online):

var spformsHelper = spforms({username:'[e-mail]', password: pass});

var webPartSettings = { siteUrl: 'https://tenant.sharepoint.com/sites/subsite/', listTitle: 'Custom List Title', contentLink: 'https://tenant.sharepoint.com/sites/subsite/Assets/App/app.html' }; //Add content editor webpart to all 3 list item forms: spformsHelper.addCEWP2LitstForms(webPartSettings);