Consider the following code: ``` <form> ... <button type="submit" class="btn btn-primary" data-coreui-toggle="loading-button">Save</button> </form> ``` Pressing Save button never submits the form. I don't think that adding data-coreui-toggle="loading-button" should prevent default action. Of course, the bug is trivial to fix (loading-button.js): ``` EventHandler.on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, event => { // event.preventDefault(); --> remove this const button = event.target.closest(SELECTOR_DATA_TOGGLE); const data = LoadingButton.getOrCreateInstance(button); data.start(); }); ```