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List: htmlunit-develop
Subject: [HtmlUnit] [ htmlunit-Bugs-2834335 ] Yahoo! Maps breaks Prototype
From: "SourceForge.net" <noreply () sourceforge ! net>
Date: 2009-09-25 12:35:50
Message-ID: E1MrA1e-0007d6-Fm () h45xhf1 ! ch3 ! sourceforge ! com
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Bugs item #2834335, was opened at 2009-08-09 02:26
Message generated for change (Comment added) made by mguillem
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=448266&aid=2834335&group_id=47038
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Category: None
Group: Latest code in SVN
> Status: Closed
> Resolution: Fixed
Priority: 5
Private: No
Submitted By: Erik Ostrom (eostrom)
Assigned to: Marc Guillemot (mguillem)
Summary: Yahoo! Maps breaks Prototype under HtmlUnit/Rhino
Initial Comment:
Prototype.js adds methods such as .first() to Array's prototype. If Prototype is \
loaded and then Yahoo! Maps is used, those added methods become unavailable.
I'm attaching a small HTML file that reproduces the error, retrieving the relevant \
libraries from the net. The test case uses Mapstraction, but it's a fairly thin layer \
around Yahoo! Maps; the specific line that makes things break calls Yahoo!'s \
Map.drawZoomAndCenter. (That is, if you comment out that line in mapstraction.js, \
Prototype works again. However, then you don't have a map.)
Some things I've learned about this error:
* It occurs in HtmlUnit emulating Firefox, but not in Firefox 3.5.2.
* It occurs with Yahoo! Maps, but not with OpenLayers.
* It affects Prototype methods on Array, but not those on String.
* It occurs after Yahoo! Maps is used, not before.
* It doesn't occur if Yahoo! Maps is simply loaded; you have to actually initialize \
a map.
For the sake of completeness, here's some info about the test environment I'm using:
* langalex-culerity-0.1.7
* jarib-celerity-0.0.6.14
* htmlunit-2.6-SNAPSHOT.jar (bundled with celerity)
* htmlunit-core-js-2.6-SNAPSHOT.jar (ditto)
* (also tried snapshot jars from celerity repository, 08-07-2009)
* Mapstraction v1.latest
* Yahoo! Maps 3.8
* Prototype.js 1.6.0.3
* Rails 2.3.2
* Ruby 1.8.6 (p287)
* JRuby 1.3.1
* Java 1.5.0_19
* OS X 10.5.7
However, I strongly suspect it's reproducible using only HtmlUnit/Rhino, the attached \
HTML file, and the JavaScript libraries it references (no Ruby, Rails, or Celerity).
----------------------------------------------------------------------
> Comment By: Marc Guillemot (mguillem)
Date: 2009-09-25 14:35
Message:
Now fixed with latest snapshot of htmlunit-core-js.
----------------------------------------------------------------------
Comment By: Marc Guillemot (mguillem)
Date: 2009-08-14 16:19
Message:
Opened Rhino bug:
https://bugzilla.mozilla.org/show_bug.cgi?id=510504
----------------------------------------------------------------------
Comment By: Marc Guillemot (mguillem)
Date: 2009-08-13 23:04
Message:
This looks like a bug in Rhino. Following code shows the problem. Too late
for today to do more than to add this info here ;-)
<html>
<body>
<script>
Array.prototype.foo = function() { alert("hello")};
[].foo();
var x = []
for (var i in x)
{
alert(i)
delete x[i]
}
[].foo();
</script>
----------------------------------------------------------------------
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=448266&aid=2834335&group_id=47038
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