“Unable to get value of the property 'appendChild': object is null or undefined” while appending script to IE
问题 When I try to append the following script to IE, I get this error: "Error: Unable to get value of the property 'appendChild': object is null or undefined" It works fine in Chrome, but when testing on IE9 this occurs. Can anyone tell me what the error is? // create script in document var fbScript = document.createElement("script"); fbScript.type = "text/javascript"; // make script source the facebook plugin fbScript.src = "http://connect.facebook.net/en_US/all.js#xfbml=1"; // append script to