tex.js \\tracingstats=1 \\bye => no output result

[CarpeDiemKopi]

Exspected:

`This is TeX, Version 3.14159265 (TeX Live 2019) (preloaded format=tex 2019.7.26)
1 AUG 2019 18:56
**\tracingstats=1 \bye

Here is how much of TeX's memory you used:
1 string out of 497973
10 string characters out of 6220659
5898 words of memory out of 5000000
926 multiletter control sequences out of 15000+600000
14794 words of font info for 50 fonts, out of 8000000 for 9000
14 hyphenation exceptions out of 8191
1i,0n,0p,1b,6s stack positions out of 5000i,500n,10000p,200000b,80000s
No pages of output.`

input file test01.tex:

\tracingstats=1
\bye

=> test01.log

This is TeX, Version 3.14159265 (preloaded format=plain 1776.7.4) 4 JUL 1776 12:00
**\input samples/test01.tex
(samples/test01.tex )
No pages of output.

**The stats are not displayed.**