When a user does not fill out a required field using the stock form element, no message appears, like "this field is required. All it does is fail to submit, but doesn’t tell the user why. This is causing issues with two of my sites, as users think they have submitted the form, but really they have missed a required field and don’t know it.
Is there a way to change this behavior? Can a message pop up that some fields are not filled out? Can the message be configured?