Bug 158106

Summary:

Safari on iOS 9.3.2 - TypeError, not a function, undefined, when attempting to call a custom method on an ES6 class extended from Array

Product:

WebKit

Reporter:

Erik Nordstrøm <erik>

Component:

JavaScriptCore

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED INVALID

Severity:

Normal

CC:

erik, ggaren, saam, ysuzuki

Priority:

Version:

Other

Hardware:

iPhone / iPad

OS:

iOS 9.3

Attachments:

Description	Flags
HTML file to reproduce problem	none
Screenshot of test working in Chrome Dev on Android	none
Screenshot of devtools connected to Chrome Dev on Android	none
Screenshot of test failing in Safari on iOS 9.3.2	none
Screenshot of devtools connected to Safari on iOS 9.3.2	none

Erik Nordstrøm

Reported 2016-05-25 19:12:38 PDT

Created attachment 279851 [details] HTML file to reproduce problem Calling a custom method on an ES6 class extended from Array results in TypeError, stating that the function is undefined. Tested in: - Safari on iOS 9.3.2 - Firefox 46.0.1 on Fedora 23 - Chrome Dev 52.0.2739.3 on Android 4.2.2 Steps to reproduce: Serve attached HTML file with a web server, then open it in Safari on iOS 9.3.2. Observe that TypeError is thrown. Expected outcome: Calling the custom method should have worked. Actual outcome: Test fails with TypeError, undefined, in Safari on iOS 9.3.2, works in the other two browsers tested.

Attachments
HTML file to reproduce problem (1.02 KB, text/html) 2016-05-25 19:12 PDT, Erik Nordstrøm	no flags	Details
Screenshot of test working in Chrome Dev on Android (29.76 KB, image/png) 2016-05-25 19:13 PDT, Erik Nordstrøm	no flags	Details
Screenshot of devtools connected to Chrome Dev on Android (27.30 KB, image/png) 2016-05-25 19:14 PDT, Erik Nordstrøm	no flags	Details
Screenshot of test failing in Safari on iOS 9.3.2 (38.06 KB, image/png) 2016-05-25 19:15 PDT, Erik Nordstrøm	no flags	Details
Screenshot of devtools connected to Safari on iOS 9.3.2 (21.32 KB, image/png) 2016-05-25 19:16 PDT, Erik Nordstrøm	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Erik Nordstrøm

Comment 1 2016-05-25 19:13:55 PDT

Created attachment 279852 [details] Screenshot of test working in Chrome Dev on Android

Erik Nordstrøm

Comment 2 2016-05-25 19:14:51 PDT

Created attachment 279853 [details] Screenshot of devtools connected to Chrome Dev on Android

Erik Nordstrøm

Comment 3 2016-05-25 19:15:36 PDT

Created attachment 279854 [details] Screenshot of test failing in Safari on iOS 9.3.2

Erik Nordstrøm

Comment 4 2016-05-25 19:16:50 PDT

Created attachment 279855 [details] Screenshot of devtools connected to Safari on iOS 9.3.2

Yusuke Suzuki

Comment 5 2016-05-26 00:26:12 PDT

(In reply to comment #4) > Created attachment 279855 [details] > Screenshot of devtools connected to Safari on iOS 9.3.2 What happens in Safari Technology Preview 4?

Yusuke Suzuki

Comment 6 2016-05-26 00:35:32 PDT

I've just tested on Safari TP4 and "All is well in browser land ^_^" is shown. So closing this issue, thank you for your report :)

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