Interactive HTML viewer: Local files and HTTP/HTTPS documents now open inside KatanA with CSS, JavaScript, same-origin resources and iframes, links, text input, and pointer or keyboard interaction.
✨ Improvements
Browser-compatible layouts: HTML slide decks preserve viewport-based sizing, multi-column and flex layouts, gradients, fixed controls, explicit line breaks, multilingual text, centered number badges, and paging controls.
Responsive HTML interaction: High-rate pointer and scroll input no longer blocks discrete clicks, keyboard input, navigation, or later frame updates, and the avoidable delay before the first HTML frame has been removed.
Actionable HTML errors: On-screen diagnostics now identify the failed operation and document with the root cause, including HTTP status, server verification challenges, and JavaScript runtime failures.
🐛 Bug Fixes
Document switching: A completed request for an older remote URL can no longer replace a local HTML document opened afterward, and interactions no longer reuse a stale frame from the previous document.
Local HTML URLs and slideshows: Opening a file:// URL now preserves its query and fragment, loads same-folder iframe content, advances interactive slides, and shows a specific in-page error when an iframe file is missing instead of leaving a blank preview.
Image viewing controls: Fullscreen zoom remains active while panning in every direction, and image controls keep a fixed high-contrast background and border on light themes and white images.
