NGSIv2 subscribe does not support https in cbHost payload

[chicco785]

current code is as follows:

   if (device.cbHost) {
        options.uri = 'http://' + device.cbHost + '/v2/subscriptions';
    } else {
        options.uri = config.getConfig().contextBroker.url + '/v2/subscriptions';
    }

while it should (probably) be:

    if (device.cbHost && device.cbHost.indexOf('://') !== -1) {
        options.uri = device.cbHost + '/v2/subscriptions';
    } else if (device.cbHost && device.cbHost.indexOf('://') === -1) {
        options.uri = 'http://' + device.cbHost + '/v2/subscriptions';
    } else {
        options.uri = config.getConfig().contextBroker.url + '/v2/subscriptions';
    }

[fgalan]

Is this issue as spinf of for #593 ?

[chicco785]

yep but for ngsiv2, i am fix it and adding tests