I am having an issue with Sharepoint Lookup Fields not filtering when typing and I have a custom filter applied. Is this normal? My custom filter applies correctly. Here is my code which is run when the lookup is ready:
function hrFilter (field) {
var v = 'H&R';
field.filter = "CLCompanyCopy eq '" + encodeURIComponent(v) + "' and CLActive eq 'Active'";
field.orderBy = {field: 'CLDispName', asc: true};
field.useCustomFilterOnly = true;
field.operator = "startsWith";
}