我的pageAction图标在Chrome webextension中保持无效状态

Question

我正在为使用Page Action模型的Chrome和Firefox编写一个webextension。在manifest.json我提供了网址匹配规则，以便它只显示在特定网址上。这在Firefox中运行良好，但图标在Chrome中始终处于非活动状态。这是我的Chrome manifest.json，它与Firefox相同但没有firefox特定的aplications属性。加载时网页的网址在Chrome中与在Firefox中完全相同。

{
"manifest_version": 2,

"name": "MyExtension",
"version": "0.1.1",
"description": "A description",
"permissions": [
    "activeTab",
    "storage"
],
"page_action": {
    "default_title": "MyExtension",
    "default_popup": "popup.html",
    "default_icon": {
        "16": "images/icon16.png",
        "32": "images/icon32.png",
        "48": "images/icon48.png",
        "128": "images/icon128.png"
      },
    "show_matches": ["https://example.com/@*"],
    "hide_matches": ["https://example.com/@*/*"]
}

}