Broker websocket API doesn't like JSON strings with unicode escaping

[simeonmiteff]

I encountered this while trying to send a string with HTML entities in it (e.g., <ohai>), and discovering that my JSON library (un?) helpfully escapes them as follows:

{"@data-type":"string","data":"\u003cohai\u003e"}

I will patch https://github.com/corelight/go-zeek-broker-ws to turn off the HTML entity escaping feature and avoid this problem (I don't think we care about crappy browser security issues, and broker/CAF is happy to deserialise the string with HTML entities), but not handling escaped characters is probably a bug worth fixing.

[Neverlord]

not handling escaped characters is probably a bug worth fixing

Absolutely. We actually already have someone working on this (actor-framework/actor-framework#1949), so I'll take care that the fix finds its way to Broker/Zeek.

[simeonmiteff]

Much appreciated @Neverlord