Problem with IE8

[honeyeyo]

Hi,
I'm running the code with some javascript tool , with IE8,on WinXP, producing the following output:
Object doesn't support this property or method
at traverse() (/jsprime-master/engine.js:104)
at analyze() (/jsprime-master/engine.js:68)
at getEditorValue() (/jsprime-master/index.html:79)
at JScript - onclick function() (/jsprime-master/index.html:59)

it seems that two methods "Array.isArray()" and "forEach()" are not supported on low version IE, and FireFox.
will it be fixed? thanks!

[honeyeyo]

and "Array.indexOf()"

Object doesn't support this property or method
at assignFunctionReturnValue() (/jsprime-master/engine.js:262)
at analyze() (/jsprime-master/engine.js:83)
at getEditorValue() (/jsprime-master/index.html:79)
at JScript - onclick function() (/jsprime-master/index.html:59)
Object doesn't support this property or method
at assignFunctionReturnValue() (/jsprime-master/engine.js:257)
at analyze() (/jsprime-master/engine.js:83)
at getEditorValue() (/jsprime-master/index.html:79)
at JScript - onclick function() (/jsprime-master/index.html:59)

[Nevraeka]

IE8 is EOL . Does it make sense to close this?