HTML script in Signature

[HeroC]

I am trying to add an HTML script to my signature. ( iFrame) I do  script here but it ends up getting rid of the HTML tag.  Do i need permission for this or am I doing something wrong? I have seen someone else do it, but it isn't working for me.

[MiningBuddy]

Its not allowed.

[theymos]

I have seen someone else do it

You may have seen images (which aren't allowed anymore for new signatures), but certainly not an iframe.

[Liam W]

I am trying to add an HTML script to my signature. ( iFrame) I do  script here but it ends up getting rid of the HTML tag.  Do i need permission for this or am I doing something wrong? I have seen someone else do it, but it isn't working for me.

Practically no forum allows HTML, and the ones that do disable advanced HTML like iframes - it's just common security sense really.