|type||Specifies the MIME type. This attribute is required in HTML4, but optional in HTML5.|
|async||Specifies that the script shall be executed asynchronously (only for external scripts). This attribute|
does not require any value (except of XHTML).
|defer||Specifies that the script shall be executed when the page has finished parsing (only for external scripts). This attribute does not require any value (except of XHTML).|
|chrset||Specifies the character encoding used in an external script file, e.g. UTF|
|crossorigin||How the element handles crossorigin requests|
|nonce||Cryptographic nonce used in Content Security Policy checks CSP3|