pxt-core/docfiles/targetconfig.html

Microsoft MakeCode provides Blocks / JavaScript / Python tools and editors

<script type="text/javascript">
    if (!window.pxtTargetConfigPromise) {

        // This line gets patched up by the cloud
        var pxtConfig = null;

        var versionsuff = "@versionsuff@";
        versionsuff = versionsuff ? "/" + versionsuff : "";

        var targetConfigUrl = (pxtConfig && pxtConfig.isStatic) ? "targetconfig.json" : ("api/config/@targetid@/targetconfig" + versionsuff);
        var fetchParams = !/localhost:/.test(window.location.href) ? {} : {
            headers: {
                "Authorization": localStorage.getItem("@targetid@/local_token"),
                method: "GET"
            }
        };
        // todo: CDN cached version?
        window.pxtTargetConfigPromise = fetch(targetConfigUrl, fetchParams)
            .then(resp => resp.json());
    }
</script>