Author(s) and publish date By: Karl Dubost Published: 27 March 2012 The Open Web Platform weekly. HTML5 Modal dialogs Jochen Eisinger (Chromium) made a proposal for non-modal versions of modal prompts. Basically, when users have to interact with a modal dialog, it blocks the UI for all tabs. People might want to interact with other websites and still not replying right aways to the modal dialog. P