Content-Type: text/html
Content-Length: 194

1. {
"0":"v0",
"1":"v1",
"3":"v3"
}
2. {
"0":"0",
"1":"1",
"2":"3"
}
3. {
"0":"v0",
"1":"v1",
"2":"v3"
}
4. Exception type: parser.runtime,
Source: bug,
Comment: mode must be 'keys' or 'values'