If you see the error message “A valid value for 'options.documentID' is required” when attempting to preview a file in the Sync web panel, this typically indicates a browser-related issue that is preventing the file preview from loading correctly.
This is not caused by the file itself, but rather by how your browser is handling the preview request.
How to fix it
Follow these steps to resolve the issue:
Clear your browser cache. Clearing your browser’s cache can help remove outdated or corrupted data that may be causing the error. After clearing your cache, try previewing the file again.
Try incognito or private browsing mode. Open a new incognito (Chrome) or private (Firefox/Safari/Edge) browser window. Then try accessing the file again. This helps rule out issues caused by browser extensions or add-ons.
Test a different browser. Try opening the link in a different web browser (e.g., Firefox, Safari, Edge, or Chrome). This can help determine if the issue is specific to one browser.
Still having trouble? Contact support.
If the error persists after waiting, contact our support team with details about what took place when the error occurred so this can be investigated further.