896999 - Adding array find method causes 'uncaught exception: There is already a registered component named "find"' error on f-i.com

Status: RESOLVED INVALID

(Web Compatibility :: Site Reports, defect)

Description

[Clochix]

The page at http://www.f-i.com/fi/airlines/ doesn't work in nightly because of a JavaScript exception : 
uncaught exception: There is already a registered component named find

(the drag and drop of destination target doesn't work, neither the lazy loading of images).

Tested with 
 - Mozilla/5.0 (X11; Linux x86_64; rv:25.0) Gecko/20130719 Firefox/25.0
 - Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20130722 Firefox/25.0

The page works fine without error message in Firefox 24a2 and older versions

Comment 1

[Anthony Ricaud (:rik)]

Here's the pushlog that I found using mozregression:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=3b955f306226&tochange=8e3a124c9c1a

Comment 2

[(mostly gone) XtC4UaLL [:xtc4uall]]

Probably by Bug 885553 (see the other TE Regression it "caused").

Comment 3

[Karl Dubost💡 :karlcow]

e.prototype.register = function (t, e) {
if (null != this.availableComponents[t]) throw 'There is already a registered component named ' + t;
this.availableComponents.push({
name: t,
func: e
})

fwiw, I get the same result in Safari.
Aaaah… it is working in Opera Blink. So I suspect this is a Web site which has been made with Chrome only in mind.

Comment 4

[Hallvord R. M. Steen [:hallvors]]

I suppose it will start failing if/when Chrome implements Array.prototype.find()

Comment 5

[Mike Taylor [:miketaylr]]

Site appears to no longer exist, redirects to http://fantasy.co/.