Query IQA with REST api using a multi select parameter

Hello,

We have an IQA that accepts a parameter that is multiselect. For instance a member may select multiple countries for this query. How are we able to query this IQA with multiple countries for a single parameter?

with tried a variety of different characters to separate the values, include, comma, semi colon, pipe, etc. We also tried various url encoding on the values.

/Asi.Scheduler_iMIS/api/IQA?QueryName=%24%2FTestMS&Parameter=CA%7CUSA&Limit=25
/Asi.Scheduler_iMIS/api/IQA?QueryName=%24%2FTestMS&Parameter=CA%2CUSA&Limit=25
/Asi.Scheduler_iMIS/api/IQA?QueryName=%24%2FTestMS&Parameter=CA,USA&Limit=25
/Asi.Scheduler_iMIS/api/IQA?QueryName=%24%2FTestMS&Parameter=CA;USA&Limit=25
/Asi.Scheduler_iMIS/api/IQA?QueryName=%24%2FTestMS&Parameter=CA|USA&Limit=25

With only country supplied a proper result is returned.

Is this type of query supported by the REST api?

Thanks,
Des