Would you believe that.

[6/29/2013 1:44:17 PM] JavaScript - https://pl.wikipedia.org/wiki/Gródek_(obwód_lwowski)?veaction=edit
Event thread: readystatechange
Uncaught exception: Error: WRONG_ARGUMENTS_ERRError thrown at line 39, column 4 in <anonymous function: ve.copyDomElements>(domElement) in https://bits.wikimedia.org/pl.wikipedia.org/load.php?debug=false&lang=pl&modules=ext.visualEditor.base%2Cmediawiki%2CviewPageTarget%7Cjquery.visibleText%7Coojs%7Cunicodejs.wordbreak&skin=vector&version=20130629T021004Z&*:
    return doc ? doc.importNode(domElement, true) : domElement.cloneNode(true);
called from line 38, column 3 in <anonymous function: ve.copyDomElements>(domElements, doc) in https://bits.wikimedia.org/pl.wikipedia.org/load.php?debug=false&lang=pl&modules=ext.visualEditor.base%2Cmediawiki%2CviewPageTarget%7Cjquery.visibleText%7Coojs%7Cunicodejs.wordbreak&skin=vector&version=20130629T021004Z&*:
    return domElements.map(function(domElement) {
called from line 9721, column 3 in <anonymous function: ve.ce.GeneratedContentNode.prototype.onUpdate>() in https://bits.wikimedia.org/pl.wikipedia.org/load.php?debug=false&lang=pl&modules=ext.visualEditor.core%2Cicons-vector%7Cext.visualEditor.viewPageTarget.icons-vector%7Crangy&skin=vector&version=20130629T021004Z&*:
    this.$.empty().append(ve.copyDomElements(store.value(index), doc));
called from line 9711, column 2 in VeCeGeneratedContentNode() in https://bits.wikimedia.org/pl.wikipedia.org/load.php?debug=false&lang=pl&modules=ext.visualEditor.core%2Cicons-vector%7Cext.visualEditor.viewPageTarget.icons-vector%7Crangy&skin=vector&version=20130629T021004Z&*:
    this.onUpdate();
called via Function.prototype.call() from line 10325, column 2 in VeCeMWTransclusionNode(model, config) in https://bits.wikimedia.org/pl.wikipedia.org/load.php?debug=false&lang=pl&modules=ext.visualEditor.core%2Cicons-vector%7Cext.visualEditor.viewPageTarget.icons-vector%7Crangy&skin=vector&version=20130629T021004Z&*:
    ve.ce.GeneratedContentNode.call(this);
called via Function.prototype.call() from line 10366, column 2 in VeCeMWTransclusionBlockNode(model) in https://bits.wikimedia.org/pl.wikipedia.org/load.php?debug=false&lang=pl&modules=ext.visualEditor.core%2Cicons-vector%7Cext.visualEditor.viewPageTarget.icons-vector%7Crangy&skin=vector&version=20130629T021004Z&*:
    ve.ce.MWTransclusionNode.call(this, model);
called via Function.prototype.apply() from line 50, column 2 in <anonymous function: ve.Factory.prototype.create>(name) in https://bits.wikimedia.org/pl.wikipedia.org/load.php?debug=false&lang=pl&modules=ext.visualEditor.core%2Cicons-vector%7Cext.visualEditor.viewPageTarget.icons-vector%7Crangy&skin=vector&version=20130629T021004Z&*:
    constructor.apply(obj, args);
called from line 8132, column 4 in <anonymous function: ve.ce.BranchNode.prototype.onSplice>(index) in https://bits.wikimedia.org/pl.wikipedia.org/load.php?debug=false&lang=pl&modules=ext.visualEditor.core%2Cicons-vector%7Cext.visualEditor.viewPageTarget.icons-vector%7Crangy&skin=vector&version=20130629T021004Z&*:
    args[i] = ve.ce.nodeFactory.create(args[i].getType(), args[i]);
called via Function.prototype.apply() from line 8089, column 2 in VeCeBranchNode(model, config) in https://bits.wikimedia.org/pl.wikipedia.org/load.php?debug=false&lang=pl&modules=ext.visualEditor.core%2Cicons-vector%7Cext.visualEditor.viewPageTarget.icons-vector%7Crangy&skin=vector&version=20130629T021004Z&*:
    this.onSplice.apply(this, [0, 0].concat(model.getChildren()));
called via Function.prototype.call() from line 9824, column 2 in VeCeDocumentNode(model, surface, config) in https://bits.wikimedia.org/pl.wikipedia.org/load.php?debug=false&lang=pl&modules=ext.visualEditor.core%2Cicons-vector%7Cext.visualEditor.viewPageTarget.icons-vector%7Crangy&skin=vector&version=20130629T021004Z&*:
    ve.ce.BranchNode.call(this, model, config);

At this point `store.value(index)` is [undefined, undefined] on Opera, but [<span...>, <dl...>] on Firefox. Since `index` is not undefined, this would indicate some sort of an internal inconsistency.

--------------------------
**Version**: unspecified
**Severity**: normal