Add es3 support.

[GameLord2011]

Goals

I am trying to make my website as compatible as possible, and it (unsurprisingly) broke on ie11, here is a screenshot from a dev test on edge:

and ie11:

I want it to work enough that it detects that it is ie11 and tells you not to use it.

I opened it with this Visual Basic Script:

Set objExplorer = CreateObject("InternetExplorer.Application")
    With objExplorer
            .ToolBar = 1
            .StatusBar = 1
            .Visible = 1
    End With

Non-Goals

No response

Background

I want to make my website as compatible as possible, or at least compatible enough to where it tells people not to use ie.

Proposal

Remove error message upon setting the "target" option in tsconfig.json to anything under "es3"

[GameLord2011]

I found that script whilst poking around Microsoft office. Then I removed the function from the script I found it in. I did it because I could.