Why is my page cut off in view as published mode?

This issue likely relates to how scrolling and viewport behavior are handled in different modes (edit vs. view as published). In edit mode, AEM injects additional JavaScript and CSS to support authoring tools and interactions, which may include enhanced scrolling behavior. However, in view as published mode, the page is rendered more closely to how it would appear in production, without the AEM authoring tools. This discrepancy can sometimes lead to scrolling issues, especially if the page relies on author-specific CSS or JavaScript.

Possible Causes and Solutions:

1. Missing Dependencies in View as Published Mode: If your page relies on certain JavaScript libraries (e.g., for scroll behavior or touch interactions), they may not be properly loaded in the published version. Check if any libraries or dependencies are only included in edit mode.
2. CSS or JavaScript Differences: The scrolling behavior might be disrupted by CSS rules or JavaScript functions that only apply in edit mode. For example, if scroll-to-top buttons or other authoring tools are injecting styles, they may not behave the same way in the published version.
3. TouchEvent Handling: If your page relies on touch scrolling (common on mobile devices), ensure that the touch event handlers are properly implemented. In some cases, the default browser behavior for touch scrolling may be disabled in the published version.
4. Viewport Settings: Ensure that the viewport meta tag is correctly configured in both modes. If the viewport settings differ between edit and published modes, it could affect scrolling behavior.

Steps to Diagnose and Fix

1. Check Console for Errors: Open the browser’s developer tools (F12) and check the console for any JavaScript errors in view as published mode. This can provide clues about missing dependencies or broken functionality.
2. Inspect Scroll Behavior: Use the developer tools to inspect the scroll properties of the page. Compare the behavior between edit and published modes to identify differences.
3. Test on Different Devices: If the issue appears only on mobile devices, it could be related to touch scrolling. Test the page on different devices and screen sizes to replicate the issue.
4. Ensure Mobile-Friendly Design: If the page is meant to be viewed on mobile devices, ensure that the design is responsive and accommodates touch interactions. Sometimes, layout issues can cause scrolling problems on smaller screens.

If you need further assistance, feel free to share more details about the issue, such as the page structure, CSS, or JavaScript you’re using.