The browser handles pretty much everything inside the editor including the handlebars for resizing images and tables. Editors like TinyMCE and CKEditor are stil

The browser handles pretty much everything inside the editor including the handlebars for resizing images and tables. Editors like TinyMCE and CKEditor are still very impressive, I've made my own RTE once and it's one giant PITA to get everything to work nicely, especially across browsers.