Content-Type: text/html
Content-Length: 388

binary with first 0x00 byte:{
"class":"file",
"name":"noname.dat",
"size":4,
"mode":"binary",
"content-type":"application\/octet-stream",
"status":0,
"base64":"AAAzAA=="
}
text stdin (input converted, output converted back): АБВ
binary stdin (input not converted, output converted win->utf): АБВ
binary exec + binary stdin (input not converted, output not converted): АБВ