Getting complete renders

The screenshot is missing content that appears after the initial load — images, charts, or anything fetched by JavaScript.

Why it happens

By default Urlbox captures once the page reports it has loaded. Single-page apps and lazy-loaded content often appear after that point, so they don't make it into the render.

Fix

Tell Urlbox what to wait for:

• wait_for — wait for a specific CSS selector to appear. The most precise and reliable option.
• wait_until — wait for a load milestone: domloaded, loaded (default), requestsfinished, or mostrequestsfinished. Use requestsfinished for SPAs.
• delay — wait a fixed number of milliseconds. A blunt but simple fallback.
• wait_timeout — how long to wait before giving up (default 30000ms).

{  "url": "https://example.com",  "wait_for": "#chart.loaded",  "wait_timeout": 45000}

Which one should I use?

• You know an element that signals "ready" → wait_for (best).
• An SPA that keeps fetching → wait_until: "requestsfinished".
• You just need a moment → delay.

Avoid large fixed delay values when a wait_for selector will do — a fixed delay slows down every render.