Http header including if ECMA (Javascript) is on and the version

Hi All,

  I have encountered a issue with web design that appears to be part of the
http specification.
I believe that the version of ECMA (Javascript) and if it is on or off
should be included with the http request header when sent to a server.  It
might fit well into this RFC;

  https://www.ietf.org/id/draft-ietf-httpbis-client-hints-02.txt

  Perhaps a new section between 7 & 8 as follows;

8. The ECMA script (Javascript) Client Hint

The "ECMA" request header field is a number or text that
indicates the client's current ECMA implementation version. A blank ECMA
hint would indicate that ECMA script is currently turned off.
ECMA = Text [32 ASCII characters]

If ECMA occurs in a message more than once, the last value
should be used to override other occurrences.
Examples;

#1 ECMA script is turned off
ECMA:

#2 ECMA script is on the Next version
     ECMA: Next

     #3 ECMA script is on version 5.1
     ECMA: 5.1


  The basic thing that I am trying to do is determine if Javascript can be
used to assemble a html page or if it should be done server side if
Javascript is turned off.  Currently I can do this by assuming javascript
is on and then redirecting from the browser when it is off using something
like;
 <noscript><meta http-equiv="refresh" content="0; url=/tt/session.html"></
noscript>

When javascript is on I can assemble (and cache most of the repeated parts
of the page).
 i.e. profile these pages in Chrome and check the speed and cacheing;
http://mokshayoga.com/tt/tuition.html
then
http://mokshayoga.com/tt/index.html

Vs.
https://www.mokshayoga.com/chicago-yoga-policies.html
then
https://www.mokshayoga.com/chicago-yoga-events.html

Cheers,
-- 
Scott Morgan
President & CEO
Adligo Inc
http://www.adligo.com
1-866-968-1893 Ex 101
scott@adligo.com
By Appointment Only: skype:adligo1?call
https://www.linkedin.com/in/scott-morgan-21739415