--- title: Safari Technology Preview 9 Release Notes framework: safari-technology-preview-release-notes role: article role_heading: Article path: safari-technology-preview-release-notes/stp-release-9 --- # Safari Technology Preview 9 Release Notes Preview the latest web technology updates including: JavaScript, Web APIs, MathML, Apple Pay, Web Inspector, Media, Rendering, and bug fixes. ## Overview Overview Safari Technology Preview Release 9 is now available for download for both macOS Sierra betas and OS X El Capitan. If you already have Safari Technology Preview installed, you can update from the Mac App Store’s Updates tab. This release covers WebKit revisions 202612–203152. JavaScript Improved spec compliance for Array and TypedArray (r202631, r202943, r202926, r203147, r203101, r203107, r203037) Improved the performance of %TypedArray%.prototype.subarray (r203076) Fixed Date.setYear() to be more spec compliant (r202683) Fixed Date.toGMTString() to be the Date.toUTCString() function (r202752) Fixed a successful RegExp.compile to properly return the regular expression (r202770) Improved String to better match specs (r202916, r202956) Fixed cyclic prototypes to throw the right error type according to specs (r202832) Implemented HasRestrictedGlobalProperty when checking for global lexical tier conflicts (r202734) Fixed an unexpected “Out of memory” error for String.prototype.repeat() with a negative value argument (r202954) Fixed use strict handling when parsing functions that include use strict after other non-strict statements (r202828) Web APIs Changed FontFaceSet.load and FontFaceSet.check to honor the second argument (r203092) Moved assignedSlot from CharacterData to Text to match the latest Shadow DOM specs (r202873) Replaced Event.prototype.scoped by Event.prototype.composed to reflect the latest Shadow DOM spec (r202953) Aligned document.body setter with the HTML specification (r202893) Fixed document.body to return the first child of the HTML element that is either a body or frameset element (r202881) Fixed document.title setter for SVG documents (r202895) Fixed an issue that prevented calling the document.fonts.ready callback (r202945) Added support for unprefixed version of the CSS image-set() function (r202765) Setting table.tFoot or calling table.createTFoot() should append HTML element to the end of the table (r203011) Exposed and elements as HTMLTableCellElement objects (r202937) Prevented tbody.deleteRow(–1) and tr.deleteCell(–1) from throwing an error when there are no rows or cells (r202952) MathML Added support for href attribute in MathML (r203104) Improved the layout of using parameters from the OpenType MATH table (r203074) Added support for mathvariants that cannot be emulated via CSS. (r203072) Refactored MathML layout functions to avoid using flexbox (r202934) Apple Pay Fixed a bug allowing multiple payment sheets in Safari to be open at the same time (r203084) Renamed addressFields to contactFields (r202644) Added type and paymentPass properties in PaymentMethod (r202655) Web Inspector Added “Copy as cURL” feature for resource requests in the timeline (r203132) Fixed an issue causing Top Functions data to show even when disabled (r203102) Improved JSON pretty printing in more scenarios (r202933) Added spring to transition-timing-function value auto-completion (r202702) Added pixel area column to the Layout timeline view (r202713) Improved the API view of native DOM APIs (r202666) Fixed ⌘⇧S in the Styles sidebar to always show the save dialog (r203017) Fixed an issue causing a scrolled JavaScript Snapshot list to be drawn blank when switching back from a comparison view (r202932) Fixed an issue that caused a UTF8-encoded XHR to show garbled data in the Resource sidebar (r202843) Added Shadow Content type to DOM tree in the Elements tab (r202634) Fixed an issue preventing the last normal tab from being closed with the “Close Tab” context menu item (r202711) Fixed an issue causing the wrong function name to show in the Scope Chain sidebar of the Debugger tab (r202717) Media Pause small video elements when returning to inline when they are too small (r203066) Changed the picture-in-picture control glyph (r202880) Changed fullscreen and picture-in-picture to not animate when navigating away from the host page (r202872) Fixed WebAudio convolver channels to throw exceptions for an invalid number of channels (r202617) Fixed clearing of MSE buffers by switching to MediaTime (r202641) Fixed an issue where Facebook videos without audio tracks will sometimes cause playback controls to appear (r202918) Rendering Fixed rendering an element with a wide gamut PDF (r202927) Fixed drawing an SVG image into a that is not in the DOM (r202712) Bug Fixes Fixed database process crashes when deleting a corrupt SQLite database file (r202822) Fixed blob content type when retrieving blobs from IndexedDB (r202747) Prevented a crash when attempting to copy an image (r202754) ## See Also ### 2016 - [Safari Technology Preview 20 Release Notes](safari-technology-preview-release-notes/stp-release-20.md) - [Safari Technology Preview 19 Release Notes](safari-technology-preview-release-notes/stp-release-19.md) - [Safari Technology Preview 18 Release Notes](safari-technology-preview-release-notes/stp-release-18.md) - [Safari Technology Preview 17 Release Notes](safari-technology-preview-release-notes/stp-release-17.md) - [Safari Technology Preview 16 Release Notes](safari-technology-preview-release-notes/stp-release-16.md) - [Safari Technology Preview 15 Release Notes](safari-technology-preview-release-notes/stp-release-15.md) - [Safari Technology Preview 14 Release Notes](safari-technology-preview-release-notes/stp-release-14.md) - [Safari Technology Preview 13 Release Notes](safari-technology-preview-release-notes/stp-release-13.md) - [Safari Technology Preview 12 Release Notes](safari-technology-preview-release-notes/stp-release-12.md) - [Safari Technology Preview 11 Release Notes](safari-technology-preview-release-notes/stp-release-11.md) - [Safari Technology Preview 10 Release Notes](safari-technology-preview-release-notes/stp-release-10.md) - [Safari Technology Preview 8 Release Notes](safari-technology-preview-release-notes/stp-release-8.md) - [Safari Technology Preview 7 Release Notes](safari-technology-preview-release-notes/stp-release-7.md) - [Safari Technology Preview 6 Release Notes](safari-technology-preview-release-notes/stp-release-6.md) - [Safari Technology Preview 5 Release Notes](safari-technology-preview-release-notes/stp-release-5.md)