GeolocationPositionError：message 屬性
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2020年7月.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
GeolocationPositionError 介面的 message 唯讀屬性會回傳一個人類可讀的字串，用以描述錯誤的詳細資訊。