insertCSS-all-testcase: manifest.json permission testcase (https://developer.chrome.com/extensions/declare_permissions)

background.js

const CSS = "body { background-color: #999; }"

// update when the extension loads initially (all tabs)
browser.tabs.query({}).then((tabs) => {
        for (tab of tabs) {
            initializePageAction(tab);
        }
    });

/*
// also listen to tab URL changes, same handler
browser.tabs.onUpdated.addListener((id, changeInfo, tab) => {
    if (!changeInfo.url || changeInfo.status !== "status") {
        return;
    }
    initializePageAction(tab);
});
*/

function initializePageAction(tab) {
    if (!tab.url.match(/^about:/)) {
        console.log('::: insertCSS on tab #' + tab.id)
        console.log(tab)
        browser.tabs.insertCSS(tab.id, {code: CSS});
        console.log('---')
    }
}

manifest-notworking.json

{

  "manifest_version": 2,
  "name": "insertCSS-all testcase",
  "description": "A testcase for insertCSS",
  "version": "1.0",
  "applications": {
    "gecko": {
      "strict_min_version": "54.0a1"
    }
  },

  "background": {
    "scripts": ["background.js"]
  },

  "permissions": [
    "<all_urls>",
    "activeTab",
    "storage",
    "tabs"
  ]

}

manifest.json

{

  "manifest_version": 2,
  "name": "insertCSS-all testcase",
  "description": "A testcase for insertCSS",
  "version": "1.0",
  "applications": {
    "gecko": {
      "strict_min_version": "54.0a1"
    }
  },

  "background": {
    "scripts": ["background.js"]
  },

  "permissions": [
    "activeTab",
    "storage",
    "tabs",
    "<all_urls>"
  ]

}

Hmm, I take this back. It actuallyworks after restarting the browser and reloading the web extension

Well, it seems to be iffy. Sometimes works, but rarely.