23097 2009-01-04 06:18:06 -0800 Why does WebKit run into JavaScript1.7 blocks without supporting any feature of JavaScript 1.7 2023-12-02 06:49:22 -0800 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Mac OS X 10.5 RESOLVED DUPLICATE 257080 https://bugs.webkit.org/show_bug.cgi?id=87527 https://developer.mozilla.org/en/New_in_JavaScript_1.7 NeedsReduction P3 Normal --- 0 georg webkit-unassigned abarth anders.norgaard annevk ggaren jchaffraix webmaster oldest_to_newest 104315 0 georg 2009-01-04 06:18:06 -0800 Why does WebKit run into JavaScript1.7 blocks without supporting any feature of JavaScript 1.7. From the results of my tests, I confirm Safari 3.2 supporting JavaScript 1.6, but testing those language features that make the difference between 1.6 and 1.7 WebKit 528+ fails in each test case. It neither supports block scope variables using the new keyword let nor does it support generators using the new keyword yield nor does it support de structuring assignments. Without implementing these language features, it should not run into javascripts with language="javascript1.7" or type="application/javascript;version=1.7" because those scripts usually make use of exactly those language features not yet implemented in WebKit. 636279 1 jchaffraix 2012-05-29 11:44:20 -0700 CC'ing some (I hope relevant) people. 636544 2 abarth 2012-05-29 16:32:06 -0700 This area is a bit of a mess. My understanding is that TC39 has abandoned out-of-band versioning for JavaScript. We execute whatever types the HTML5 spec tells us to execute. 637720 3 ap 2012-05-30 14:51:40 -0700 See also: bug 87527. 1996443 4 annevk 2023-12-02 06:47:41 -0800 We now only claim support for https://mimesniff.spec.whatwg.org/#javascript-mime-type. 1996446 5 annevk 2023-12-02 06:49:22 -0800 Actually, this was only very recently fixed. Let's correctly duplicate this to the bug where it was fixed. *** This bug has been marked as a duplicate of bug 257080 ***