---
title: Safari Technology Preview 197 Release Notes
framework: safari-technology-preview-release-notes
role: article
role_heading: Article
path: safari-technology-preview-release-notes/stp-release-197
---

# Safari Technology Preview 197 Release Notes

Learn about the latest web technology updates in Safari Technology Preview: Canvas, CSS, Forms, JavaScript, Rendering, Security, SVG, Web Inspector, WebDriver, and WebGL.

## Overview

Overview Safari Technology Preview Release 197 is now available for download for macOS Sequoia beta and macOS Sonoma. If you already have Safari Technology Preview installed, you can update it in System Settings under General → Software Update. This release includes WebKit changes between: 279361@main…279854@main. Canvas Resolved Issues Fixed a detached OffscreenCanvas to not transfer an ImageBuffer. (279775@main)  (129270155) CSS Resolved Issues Fixed custom counter styles disclosure-open and disclosure-closed to point to the correct direction in right-to-left. (279404@main)  (109014745) Forms Resolved Issues Fixed form controls drawing with an active appearance when the window is inactive. (279458@main)  (127391198) JavaScript Resolved Issues Fixed fractionalDigits of Intl.DurationFormat to be treated as at most 9 digits if it is omitted. (279632@main)  (129145390) Media Resolved Issues Fixed multiple cases of audio distortion occurring when using AudioWorklets. (279409@main)  (128551401) Rendering Resolved Issues Fixed min-content calculation for unstyled only-child inlines elements. (273633@main)  (128348427) Fixed ellipsis rendering multiple times when position: relative and top are used. (279645@main)  (128394449) Fixed a bug for inline elements inserted in reverse order after a block in a continuation. (279422@main)  (128826228) Fixed the flash of a page background-colored bar in the footer when the window is resized. (279562@main)  (128940179) Security Resolved Issues Fixed CORS bypass on private localhost domain using 0.0.0.0 host and mode “no-cors”. (279835@main)  (125913679) SVG Resolved Issues Fixed error handling for invalid filter primitive references. (279421@main)  (104262208) Fixed SVGLength to sync with the WebIDL specification. (279659@main)  (129169603) Web Inspector Resolved Issues Fixed Web Inspector to show nested workers. (279793@main)  (108322385) Fixed Accessibility inspector for switch controls to report “State: on/off” instead of “Checked: true/false”. (279772@main)  (128952449) WebDriver Resolved Issues Fixed retrieving titles containing multibyte characters. (279767@main)  (123987149) WebGL Resolved Issues Fixed OffscreenCanvas.transferToImageBuffer() to clear the WebGL drawing buffer. (279434@main)  (126738038)

## See Also

### 2024

- [Safari Technology Preview 210 Release Notes](safari-technology-preview-release-notes/stp-release-210.md)
- [Safari Technology Preview 209 Release Notes](safari-technology-preview-release-notes/stp-release-209.md)
- [Safari Technology Preview 208 Release Notes](safari-technology-preview-release-notes/stp-release-208.md)
- [Safari Technology Preview 207 Release Notes](safari-technology-preview-release-notes/stp-release-207.md)
- [Safari Technology Preview 206 Release Notes](safari-technology-preview-release-notes/stp-release-206.md)
- [Safari Technology Preview 205 Release Notes](safari-technology-preview-release-notes/stp-release-205.md)
- [Safari Technology Preview 204 Release Notes](safari-technology-preview-release-notes/stp-release-204.md)
- [Safari Technology Preview 203 Release Notes](safari-technology-preview-release-notes/stp-release-203.md)
- [Safari Technology Preview 202 Release Notes](safari-technology-preview-release-notes/stp-release-202.md)
- [Safari Technology Preview 201 Release Notes](safari-technology-preview-release-notes/stp-release-201.md)
- [Safari Technology Preview 200 Release Notes](safari-technology-preview-release-notes/stp-release-200.md)
- [Safari Technology Preview 199 Release Notes](safari-technology-preview-release-notes/stp-release-199.md)
- [Safari Technology Preview 198 Release Notes](safari-technology-preview-release-notes/stp-release-198.md)
- [Safari Technology Preview 196 Release Notes](safari-technology-preview-release-notes/stp-release-196.md)
- [Safari Technology Preview 195 Release Notes](safari-technology-preview-release-notes/stp-release-195.md)