Is there a reason why vendor prefixes in IE start with a lowercase letter?

[black7375]

Unlike Moz or Webkit, it is lowercase.

https://github.com/frenic/csstype/blob/fb448e21733ac5cb52523d3b678fdbbe1f9b42f2/index.d.ts#L6523 https://github.com/frenic/csstype/blob/fb448e21733ac5cb52523d3b678fdbbe1f9b42f2/index.d.ts#L6123 https://github.com/frenic/csstype/blob/fb448e21733ac5cb52523d3b678fdbbe1f9b42f2/index.d.ts#L7011