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#7426 closed bug (duplicate)

Opened November 07, 2010 01:00PM UTC

Closed November 07, 2010 02:56PM UTC

Last modified March 13, 2012 07:17PM UTC

Conflict with Prototype.js caused by early exposure of global variables

Reported by: arrix Owned by:
Priority: undecided Milestone: 1.5
Component: selector Version: 1.4.3
Keywords: Cc:
Blocked by: Blocking:

Open in google chrome, copy and paste content from to the javascript console and run it. An error is thrown: Error: NOT_SUPPORTED_ERR: DOM Exception 9

The error is thrown by a call to div.getElementsByClassName("e") in sizzle.js.

HTMLElement.prototype.getElementsByClassName is overwritten by prototype.js and it uses $ which is overwritten by jQuery. The result is that jQuery can't finish initializing and prototype is also left broken.

window.$ and window.jQuery is exposed at the end of core.js before the feature detection code in sizzle.js.

// Expose jQuery to the global object
return (window.jQuery = window.$ = jQuery);

If I move the exposure code to the end of outro.js and call jQuery.noConflict(true) right after the jQuery code, then both prototype and jQuery will be fine.

I know why the exposure is advanced to core.js but maybe there is a better way to avoid the conflict. e.g. Put sizzle.js code to the beginning because it doesn't rely on jQuery anyway.

The discussion about this issue in the dev forum:

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Change History (2)

Changed November 07, 2010 02:56PM UTC by rwaldron comment:1

component: unfiledselector
resolution: → duplicate
status: newclosed

Changed November 07, 2010 02:56PM UTC by rwaldron comment:2

Duplicate of #4365.