Closed
Bug 718326
Opened 14 years ago
Closed 14 years ago
querySelector fails on numerical ids
Categories
(Core :: General, defect)
Tracking
()
RESOLVED
INVALID
People
(Reporter: james.r.campos, Unassigned)
Details
User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.75 Safari/535.7
Steps to reproduce:
document.querySelector('#1')
Actual results:
[Exception... "An invalid or illegal string was specified" code: "12" nsresult: "0x8053000c (NS_ERROR_DOM_SYNTAX_ERR)" location: "Web Console Line: 1"]
Expected results:
the element with id '1' should have been returned.
html5 allows ids beginning with numbers - http://www.w3.org/TR/html-markup/datatypes.html#common.data.id-def
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Comment 1•14 years ago
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> html5 allows ids beginning with numbers
Yes, but CSS does not allow ID selectors beginning with numbers, and the string passed to querySelector uses CSS selector syntax.
Simple testcase:
<!DOCTYPE html>
<style>
div { color: green; }
div#1 { color: red; }
div#\32 { color: purple; }
</style>
<div id="1">Some green text</div>
<div id="2">Some purple text</div>
In particular, document.querySelector('#\\31') will do what you want.
I just checked, and all three of Gecko, Presto, and WebKit get all of this right.
Status: UNCONFIRMED → RESOLVED
Closed: 14 years ago
Resolution: --- → INVALID
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Description
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