InstantLaTeX v2.0.0

Breaking change

Same-origin embedded editors now read and update their own iframe URL fragment. If an embed previously used the host page's fragment for its formula, move the encoded formula into the iframe src.

Fix

Host anchors and hash routing no longer overwrite an embedded formula or cancel pending edits. Standalone and cross-origin editors retain their existing URL behavior. See PR #65.

InstantLaTeX v1.1.3

Changes

• Refine the editor adapter contract and avoid redundant input notifications when fallback edits leave the value unchanged (#59).
• Add a shared browser editor driver and expand browser test coverage (#63).
• Add exploratory testing evidence and agent skills (#60, #62).

InstantLaTeX v1.1.2

InstantLaTeX v1.1.2 stops a page error when KaTeX's auto-render script is missing.

Fixes

• The page no longer throws renderMathInElement is not defined when the auto-render script fails to load. The unused auto-render bootstrap is removed (#55, #56).

Other changes

• Math rendering now lives in its own MathRenderer module. Behaviour is unchanged (#42, #54).

Verification

• 56 Jest tests passed.
• Browser suites passed for editor undo/redo, page bootstrap, cross-origin embedding, mobile layout, nested overflow, and wide formulas.
• GitHub Pages deployment succeeded.

InstantLaTeX v1.1.1

InstantLaTeX v1.1.1 fixes Backspace handling at the end of the editor input.

Fixes

• Backspace at the end of input now deletes non-bracket characters natively instead of being swallowed by bracket pairing, including surrogate pairs (#49).

Verification

• 45 Jest tests passed.
• Browser suites passed for editor undo/redo, cross-origin embedding, mobile layout, nested overflow, and wide formulas.
• GitHub Pages deployment succeeded.

InstantLaTeX v1.1.0

InstantLaTeX v1.1.0 adds improvements to bracket pairing and fixes formula rendering and layout issues.

Improvements

• Refine TeX bracket auto-pairing in a dedicated controller while preserving browser undo and redo behavior.
• Keep wide formulas scrollable from their starting point on desktop and mobile.
• Preserve usable editor space on mobile when ads load and contain overflowing rendered formulas.
• Strip enclosing math delimiters from input, including the escaped-dollar edge case.
• Contain failures from deeply nested TeX so the editor remains usable and formula state can recover.

Verification

• 36 Jest tests passed.
• Browser suites passed for editor undo/redo, cross-origin embedding, mobile layout, nested overflow, and wide formulas.
• GitHub Pages deployment succeeded.

v1.0.1

InstantLaTeX v1.0.1

InstantLaTeX is a fast, responsive, web-based tool for writing and previewing LaTeX and TeX mathematics instantly in the browser.

This release includes important fixes and polish for delimiter auto-pairing, textarea undo stack preservation, keyboard shortcut handling, and cross-origin iframe embedding safety.

Fixes & Improvements

• Auto-paired Closing Delimiters: Typing a matching closing bracket or parenthesis (), ], }) when the cursor is immediately before an auto-inserted closer now steps over it instead of duplicating it (#14, #17).
• Paired Delimiter Deletion: Pressing Backspace between empty auto-paired delimiters now deletes both opening and closing delimiters together (#14, #17).
• Editor Undo Stack Preservation: Replaced direct DOM value mutations during auto-pairing with undo-preserving input actions, ensuring browser undo/redo history remains intact and functional (#15, #17).
• Shortcut Chord Integrity: Keyboard shortcut chords using modifier keys (such as Cmd+[ or Ctrl+[) are no longer intercepted by delimiter auto-pairing (#16, #17).
• Cross-Origin Iframe Safety: Resolved an issue where typing within a cross-origin embedded iframe would trigger top-level navigation on the host page. Cross-origin embeds now safely isolate formula state to their own frame without touching the parent page (#20, #22).
• Test Infrastructure & Hygiene: Configured bounded worker pools for Jest and automatic cleanup of ephemeral browser profiles following Puppeteer end-to-end test execution (#21, #23).

v1.0.0

InstantLaTeX v1.0.0

InstantLaTeX is a fast, responsive, web-based tool for writing and previewing LaTeX and TeX mathematics instantly in the browser.

Highlights & Features

• Instant KaTeX Rendering: Fast and accurate TeX / LaTeX rendering powered by KaTeX.
• Modern Responsive Layout: Clean split-pane interface with responsive design and dark mode support.
• URL Hash Synchronization: Live bi-directional URL fragment syncing for effortless sharing and bookmarking of formulas.
• Native Browser Experience: Pure vanilla JavaScript and modern CSS without heavy external framework dependencies.

Fixes & Improvements

• Event Handling: Full editor sync across all input events (drag-and-drop, IME composition, menu paste/undo) (#6, #7).
• Navigation & History: Clean navigation without cluttering browser history stack using state replacement (#5, #8).
• Comment Support: Seamless KaTeX rendering when math expressions contain % comments (#4, #9).
• Encoding Robustness: Graceful error handling for malformed URI fragments and unpaired UTF-16 surrogate pairs (#2, #10).
• Default State Resilience: Preserved initial editor state when navigating to empty or bare # fragments (#3, #11).
• Test Automation: Comprehensive automated test coverage using Jest.