beforeunload.js:适用于window.beforeunload的API也可与Turbolinks 2一起使用

beforeunload.js 原料药 BeforeUnload . enable ( # Only gets triggered if this returns truthy if : -> inputHasChanged # The warning message that is displayed message : " You have entered data that is not yet saved. " # If triggered by Turbolinks, call this function instead # of displaying the warning message. Returning `false` from # this function will still show the BeforeUnload alert.