Bug 138779

Summary: Using document.appendChild to create a new element with ID attribute creates a property / global variable on window
Product: WebKit Reporter: Fabio Kenji <seibzhen>
Component: DOMAssignee: Nobody <webkit-unassigned>
Status: RESOLVED INVALID    
Severity: Normal    
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Mac   
OS: OS X 10.10   
Attachments:
Description Flags
a web page with the steps used on the bug report none

Fabio Kenji
Reported 2014-11-16 11:18:20 PST
Created attachment 241682 [details] a web page with the steps used on the bug report It seems that when using the DOM API to create new nodes on a webpage and specifying an ID attribute, a global variable / property on window object is created with the same name as the specified ID. In the example attached, I am getting a reference to a paragraph in the body of the page. After that, I am creating a new div node and setting its id attribute to 'test_variable'. In the next lines, I am appending it into the paragraph node reference I had gotten earlier using appendChild(). After that code is run, a new property on window is created, window.test_variable, having the reference to a HTMLDivElementConstructor.
Attachments
a web page with the steps used on the bug report (485 bytes, text/plain)
2014-11-16 11:18 PST, Fabio Kenji 		no flags
Details
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Fabio Kenji
Comment 1 2014-11-16 14:24:02 PST
Nevermind - my mistake, did not not know each element in the page with an ID is accessible through window.
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