Tiny webextension to navigate through random "prnt.sc" screenshots. Idk who might need it, purely for research purposes

background.js

// Load extension with manifest, and click on the icon that appears on browser panel
// And don't forget to load random pic to extension folder and name it "icon.png"
//
const endpoint = "https://prnt.sc"

browser.browserAction.onClicked.addListener(() => {
    const rndId = (length) => {
        const characters = 'abcdefghijklmnopqrstuvwxyz0123456789'
        const charactersLength = characters.length
        const getRndChar = function() {
            return characters.charAt(Math.floor(Math.random() * charactersLength))
        }
        return Array.
                from(Array(length), value => getRndChar()).
                join('')
    }
    const id = rndId(6)
    browser.tabs.update({url: `${endpoint}/${id}`})
});

manifest.json

{
  "manifest_version": 2,
  "name": "Open random prnt.sc url",
  "version": "1.0",

  "permissions": [
    "tabs",
    "activeTab",
    "webRequest",
    "webNavigation"
  ],
 
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "Random prnt.sc url"
  },
  
  "background": {
    "scripts": ["background.js"]
  }
}