Menu

Last Week in WebKit: Reporting CSS errors and security policy violation events

March 26th, 2013

WebKit saw 717 new revisions last week, and this update discusses them up to r146744.

Work has started enabling Web Inspector to report various CSS parsing errors, such as mismatched braces and missing semicolons. A menu has been added allowing you to customize the panels displayed in the toolbar, capitalization of menu items has been made consistent and IndexedDB data may now be cleared.

WebKit’s Content Security Implementation will now fire a “securitypolicyviolation” event whenever violations occur, and will include the effective-directive key in violation reports as well.

Intrinsic sizing (i.e. min-content) now work on flexible box elements, and parsing for the -webkit-each-line value for CSS 3′s text-indent property got implemented as well. The Grid Layout implementation now supports default grid item sizing, and can parse the grid-auto-{column, row} CSS properties.

Apple’s JavaScript engine ninja Filip Pizlo filed a series of bugs covering some future plans and experiments in regards to JavaScriptCore. Ideas including changing it to a¬†quadruple-tier virtual machine, allowing it to do more optimizations for longer running scripts, running the optimizer on¬†awesome new threads and experimenting with LLVM as a backend.

Other changes which occurred last week: