Tracer dogstatsd default to use metrics proxy HTTP instead of UDP

[asafpelegcodes]

When I initialize my tracer with standard settings and send an increment

import { tracer } from "dd-trace";
tracer.init({})

//...later on
tracer.dogstatsd.increment("mycustom.metric.testing", 1);

When I debug the metrics it appears that the metrics is configured with http at localhost port 8126. Is this is expected behavior? I thought UDP was more performant the http and that's why it was used.

port coalesces to 8126 from the default config and is detected here and sets up metricsProxyUrl object which is then used in flush as the default option