jquery.bgiframe.js prompts INVALID_CHARACTER_ERR error_jquery under IE9

jquery.bgiframe.js error under IE9

Copy code The code is as follows:

SCRIPT5022: DOM Exception: INVALID_CHARACTER_ERR (5)
jquery.bgiframe.js, line 8 characters 976

Error code

Copy Code The code is as follows:

1 {if(!$('iframe.bgiframe',this)[0])this.insertBefore(document.createElement(html ),this.firstChild);});};})(jQuery);

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Plan 1:

Copy code The code is as follows:

this.insertBefore(document.createElement('html'),this .firstChild);

Just add quotation marks to HTML.
I found the solution now, and there will be new modifications in the future!