SnapDrop/snapdrop · error

Error

Error message

Error

What it means

A generic console error emitted from _requestPermission when obtaining notification permission fails: Notification.requestPermission() rejected or resolved to 'denied'. The message is an uninformative sentinel ('Error') — the faulty input is the browser's permission result for the Notifications API.

Source

Thrown at client/scripts/ui.js:415

    constructor() {
        // Check if the browser supports notifications
        if (!('Notification' in window)) return;

        // Check whether notification permissions have already been granted
        if (Notification.permission !== 'granted') {
            this.$button = $('notification');
            this.$button.removeAttribute('hidden');
            this.$button.addEventListener('click', e => this._requestPermission());
        }
        Events.on('text-received', e => this._messageNotification(e.detail.text));
        Events.on('file-received', e => this._downloadNotification(e.detail.name));
    }

    _requestPermission() {
        Notification.requestPermission(permission => {
            if (permission !== 'granted') {
                Events.fire('notify-user', Notifications.PERMISSION_ERROR || 'Error');
                return;
            }
            this._notify('Even more snappy sharing!');
            this.$button.setAttribute('hidden', 1);
        });
    }

    _notify(message, body) {
        const config = {
            body: body,
            icon: '/images/logo_transparent_128x128.png',
        }
        let notification;
        try {
            notification = new Notification(message, config);
        } catch (e) {
            // Android doesn't support "new Notification" if service worker is installed
            if (!serviceWorker || !serviceWorker.showNotification) return;

View on GitHub (pinned to b8b78cc22a)

Solutions

1. Wrap Notification.requestPermission() in try/catch and inspect err.name for the real cause
2. Handle result 'denied' separately from a rejected promise
3. Show the stored Notifications.PERMISSION_ERROR text explaining how to unblock via the lock icon / Page Info
4. Only reveal the notification button when Notification.permission is not already 'denied'

When it happens

Trigger: Thrown at client/scripts/ui.js:415 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of SnapDrop/snapdrop@b8b78cc22a (2026-09-02). Data as JSON: /api/errors/710485850a2a7969. Report an issue: GitHub.