400 Bad request sending stateId bookmark to learning locker

Hi,

I'm getting a 400 Bad request error when the course sends a request of  activities/state?stateId=bookmark.

This is the request URL: http://localhost:8081/data/xAPI/activities/state?stateId=bookmark&activityId=http%3A%2F%2FhP0xiFLg52evb6dNFBDjsUBGPXjq1wor_rise&agent=%7B%22objectType%22%3A%22Agent%22%2C%22mbox%22%3A%22mailto%3Aandrew%40tincanapi.co.uk%22%2C%22name%22%3A%22Andrew%20Downes%22%7D

And this is the Request payload:

index.html#/lessons/Hk4FP3b27_48GEDusalESaCpY9j4AdUE

And the error I'm getting from Learning Locker is this

SyntaxError: Unexpected token i in JSON at position 0
at Object.parse (native)
at parse (C:\Apps\xapi-service\node_modules\body-parser\lib\types\json.js:89:19)
at C:\Apps\xapi-service\node_modules\body-parser\lib\read.js:121:18
at invokeCallback (C:\Apps\xapi-service\node_modules\raw-body\index.js:224:16)
at done (C:\Apps\xapi-service\node_modules\raw-body\index.js:213:7)
at IncomingMessage.onEnd (C:\Apps\xapi-service\node_modules\raw-body\index.js:273:7)
at emitNone (events.js:86:13)
at IncomingMessage.emit (events.js:185:7)
at endReadableNT (_stream_readable.js:974:12)
at _combinedTickCallback (internal/process/next_tick.js:74:11)
at process._tickDomainCallback (internal/process/next_tick.js:122:9)

I think the error is because Learning Locker expects the payload to be a JSON string but the course is sending this "index.html#/lessons/Hk4FP3b27_48GEDusalESaCpY9j4AdUE" instead.

And from reading from the spec "The TCAPI state API allows you to specify any number of arbitrary key / value pairs for state".

Is there a fix to this kind of issue?

Thanks in advance.

Regards,

Carlos