error in prototype.js

[ginerjm]

I have a copy of lightbox running on my site that included a 'prototype.js' file that has been running for years. Lately, during debugging the IE developer tools is stopping on this line with the error shown:

 

var el = document.createElement('<input name="x">');

InvalidCharacterError

 

This line is part of this:

 

var HAS_EXTENDED_CREATE_ELEMENT_SYNTAX = (function(){

try {

var el = document.createElement('<input name="x">');

return el.tagName.toLowerCase() === 'input' && el.name === 'x';

}

 

Can anyone provide a work-around for this or should I just not worry about it?

[kicken]

You most likely have your developer tools configured to stop on all errors. During a normal run that error would be caught by the try{} block and ignored.

 

That function is testing to see if the browser supports using createElement with a full tag. The standards compliant way to use createElement is to specify only the tag name, such as:

 

document.createElement('input');

To get IE to ignore it while debugging you need to change the exception behavior. There is a button for this in the toolbar that looks a bit like a stop sign. Shortcut is ctrl+shift+e.