Do you remove "Language" from your script tag?

Years ago, it was common to have the "language" attribute within the script tags. This attribute was used to specify the scripting language of the contents of this element.

Since these identifiers are not standard, this attribute has been deprecated in favor of "type".

<script href="script.js" language="javascript"></script>

<script href="script.js" type="text/javascript"></script>

Read more on W3C - Specifying the scripting language.