fabiwlf
/ manifestinjector.js
Created
November 30, 2021 21:50
Make web.whatsapp.com and any other website with service worker but no manifest installable from browser
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| const makeManifest = async (manifest) => { | |
| manifest.description = document.head.children.description?.content; | |
| const icons = await Promise.all(Array.from(document.querySelectorAll(`link[rel$="icon"]`)).map((icon) => new Promise((resolve) => { | |
| const img = new Image() | |
| img.src = icon.href || icon.src; | |
| img.onload = resolve; | |
| img.onerror = () => resolve(null); | |
| }))); | |
| for (let iconLoadEvent of icons) { | |
| if (!iconLoadEvent) continue; |