738908 - calculator buttons on ecalc.com don't work

Status: RESOLVED FIXED

(Core :: JavaScript Engine, defect)

Description

[Bram Speeckaert]

The calculator buttons on ecalc.com appear to have stopped working since the 2012-03-10 Nightly build. Since this was before the migration, I'm assuming the current Aurora builds are affected as well.

Works:
2012-03-09
Doesn't work:
2012-03-10

Tested on:
Windows 7 64-bit with 32-bit builds
Linux 64-bit

Comment 1

[Alice0775 White]

Confirmed

Error: let is a reserved identifier
Source file: http://www.ecalc.com/js/members/tracking2.js
Line: 1, Column: 20244

Triggered by;
6d139ebc0f43	Adam — Make "let" a reserved word for Web scripts. Bug 730139, r=jorendorff.

Comment 2

[Boris Zbarsky [:bzbarsky]]

The script has a variable named "let" (undeclared variable at that) that it uses for letters...

The site is also broken in a Safari nightly (but not in shipping Safari), as expected.

That experiment didn't take long.... :(

Requesting tracking for this, since we'll have to decide whether to leave the patch in when 13 ships or not.

Comment 3

[Tom S [:evilpie]]

So was this backed out already?

Comment 4

[Jeff Walden [:Waldo]]

The backout changeset seems to be everywhere, so I think we're good:

https://hg.mozilla.org/releases/mozilla-aurora/rev/d8a908424870
https://hg.mozilla.org/releases/mozilla-beta/rev/d4aa73deb585
https://hg.mozilla.org/mozilla-central/rev/d8a908424870