Policy’s locking down desktopCapture. Extension’s working fine on static pages but dumps a NotAllowedError the moment the WhatsApp web tab grabs focus. chrome://extensions shows the service worker is healthy. Only active flag is #enable-features=WebRtcAllowH264Fec. Manifest V3 worker keeps crashing on the messaging API call.
[Extension] Failed to acquire display media: NotAllowedError: Permission denied by user or system.
WhatsApp client blocks the capture for security. For business continuity and disaster recovery flows, try using a DOM overlay approach instead of fighting the policy. It’s bypassing the prompt and keeps the session alive during failover. [screenshot]
Inject a content script that pushes frame data through a long-lived port. You’ll see the worker crash stop when you drop the heavy stream. How your emergency flows and schedule overrides configured for this BCP planning? Need clarify if holiday calendars affect the failover routing?
Chrome’s getDisplayMedia drops the permission prompt the second a secure context like WhatsApp Web grabs focus. The DOM overlay trick works fine for static frames, but it’ll choke on real-time media routing. I’ve been building Express middleware for webhook and event pipelines for a decade, and forcing a service worker to hold the capture usually backfires. The extension just needs to pass the track reference and let the backend manage the WebSocket push. Keeps the MV3 worker from crashing on message backpressure. Node handles the heavy lifting anyway.
const express = require('express');
const http = require('http');
const { WebSocketServer } = require('ws');
const app = express();
const server = http.createServer(app);
const wss = new WebSocketServer({ server });
wss.on('connection', (ws) => {
ws.on('message', (data) => {
// parse track metadata here
// push to downstream consumer
});
});
server.listen(3000, () => console.log('relay up'));
Watch out for the scope differences between getUserMedia and getDisplayMedia. WhatsApp locks down screen capture specifically, so you’ll need to request display explicitly in the extension manifest, not just tabs. The runtime prompt gets swallowed by the browser’s security policy when a PWA grabs focus. Running a separate relay process sidesteps the main thread entirely, which keeps memory usage flat. This mirrors how I set up EventBridge consumers and Lambda handlers—decouple the ingestion from the processing. Also, double-check your manifest permissions. They need an exact string match. Mess up the array syntax or miss a comma and the whole load breaks. Stream drops happen fast. Catch it early.
When you’re handling the WebSocket push on the backend, are you validating the JWT on the initial handshake or deferring it to the middleware layer? I’m curious how you’re managing backpressure if the downstream consumer starts lagging.
The DESKTOP CAPTURE POLICY blocks the stream when WhatsApp is active and we cannot change that browser behavior from the server side. You must check the RECORDING CONFIGURATION in your org to ensure the COMPLIANCE DATA captures correctly even if the UI extension crashes, because the policy locks the capture on SECURE TABS. Run a quick SDK check to verify the RECORDING SETTINGS are enabled for the queue and we need to see the status before the failover. Use the API to fetch the recording status if the extension throws the NOTALLOWEDERROR again since the BACKEND SESSION can save the data. The script will show if the recording is active, so do not rely on the extension for the critical data and we use the API for the backup.
from purecloudplatformclientv2 import RecordingApi, Configuration
config = Configuration()
config.host = "https://api.mypurecloud.com"
config.oauth_client_id = "your_client_id"
config.oauth_client_secret = "your_secret"
api_instance = RecordingApi(config)
try:
result = api_instance.get_recordingsettings()
print(result)
except Exception as e:
print("Error: %s\n" % e)
const platformClient = require('platformclientv2');
// GET /api/v2/recording/rules
platformClient.RecordingApi().getRecordingRules().then(res => console.log(res.body.rules));
platformclientv2 validates the queue config. Browser policies block getDisplayMedia on secure tabs. Verify recording:read scope is attached to your token. Check the output array for server-side capture fallback. If the array is empty, the extension crash just masks a deeper config gap.