Why does JavaScript only work after opening developer tools in IE once?

Why does JavaScript only work after opening developer tools in IE once?

javascript internet-explorer internet-explorer-9

javascript

Does IE9 support console.log, and is it a real function?

javascript logging internet-explorer-9

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Placeholder in IE9

javascript html internet-explorer-9 placeholder

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Pass Nothing from Javascript to VBScript in IE9

javascript vbscript internet-explorer-9

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JavaScript: Can I detect IE9 if it's in IE7 or IE8 compatibility mode?

javascript internet-explorer-9 ie8-compatibility-mode

javascript

addEventListener in Internet Explorer

javascript internet-explorer internet-explorer-9 addeventlistener

javascript

How do I make an "else" in an IE HTML conditional?

javascript html css internet-explorer-9

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Website with JS doesn't work in IE9 until the Developer Tools is activated

javascript internet-explorer-9

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SCRIPT5: Access is denied in IE9 on xmlhttprequest

javascript xmlhttprequest internet-explorer-9

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Stupefyingly weird IE 9 Javascript bug: Altering doc title makes subsequent code execute

javascript internet-explorer internet-explorer-9

javascript

IE9 JavaScript error: SCRIPT5007: Unable to get value of the property 'ui': object is null or undefined

javascript asp.net internet-explorer-9

javascript

How to set HTML content into an iframe

javascript html iframe internet-explorer-8 internet-explorer-9

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Is there a way to detect if the browser has subpixel precision?

javascript html css internet-explorer internet-explorer-9

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localStorage object is undefined in IE

javascript local-storage internet-explorer-9

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Invalid Character DOM Exception in IE9

javascript dom internet-explorer-9 domexception

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