Javascript 为什么谷歌chrome可以'；t detect manifest.json

您好，我想将我的网站命名为pwa。该网站位于django，我将manifest.webmanifest放在127.0.0.1:8000/images/manifest中。webmanifest（仅用于测试）现在只有firefox可以检测到它，google chrome无法检测到。 这是我的清单。webmanifest内容：

{
    "name":"damirco",
    "short_name":"damirco",
    "display":"standalone",
    "background_color":"rgb(11,11,211)",
    "description":"damirco",
    "dir":"rtl",
    "orientation":"portrait-primary",
    "icons":[
        {
            "src":"/images/pwa/512x512.png",
            "type":"image/png",
            "sizes":"512x512"
        },
        {
            "src":"/images/pwa/192x192.png",
            "type":"image/png",
            "sizes":"192x192"
        }
    ],
    "start_url":"/",
    "scope":"/",
    "theme_color":"#3f51b5",
    "prefer_related_applications": false
}

这是链接标签：

<link rel="manifest" type="application/manifest+json" href="/images/manifest.webmanifest">