That is not a valid closing tag for the noscript tag. The proper closing tag is </noscript>. If you use the proper closing tag is should work in all older browsers. The noscript tag has been around since the 1990s, but there is no such thing as a <noscript /> tag.
Originally Posted by Good.Karma
The noscript tag is a container tag. In other words, you have to have something between an opening and closing tag in order for it to work. The trailing slash is only used for stand-alone tags that do not have a closing tag, such as br, img, meta, hr, etc.
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