Parsing of control characters

[j-moeller]

Hello,

we found that jsmn parses ASCII control characters which is technically not allowed by the JSON specification. You can find a minimum working sample here: 1

[pt300]

JSMN without strict mode is extremely permissive, the point of not having much to do with any JSON standard.
Strict mode should be the only mode JSMN support as this default "lenient" mode only confuses people and server practically nobody.