navigator.geolocation.getCurrentPosition 没有反应，请教一下如何解决？

<script>
export default {
    data() {
    },
    methods: {
        getGPS() {
            function success(position) {
                const latitude  = position.coords.latitude;
                const longitude = position.coords.longitude;
                console.log("经度");
                console.log(latitude);
            }

            function error() {
                console.log("不能获得您的位置。");
            }
            if(!navigator.geolocation) {
                console.log('Geolocation is not supported by your browser');
            } else {
                console.log ('Locating…');
                navigator.geolocation.getCurrentPosition(success, error);
            }
        }
    }
}
</script>
<template>
    <button @click="getGPS">当前位置</button>
</template>
<style scoped>
    
</style>

点击获取当前位置，只输出 Locating