Reader (but acrobat has no issue) gets notallowed error on app.launchUrl usage

sorry didn't see your post makes sense to post it all - thanks for the quick replies

// FOR BUTTON MOUSE UP EVENT JAVASCRIPT

var list = this.getField("orderList");

var shop = this.getField("SHOP NAME").value;

var ALL = "";

var subject = "&su=Draeger+Supply+Order+for+"+shop;

var basicUrl = "https://mail.google.com/mail/u/0/?view=cm&fs=1";

var emailto = "&to=workemail@mywork.com";

var body = "&body=";

for(var i = 0; i <list.numItems; i++)

{

    body+=list.getItemAt(i,false)+"%0a";

}

ALL+=basicUrl+subject+emailto+body;

openGmail(ALL);

//trusted function: openGmail -  definition

var openGmail = app.trustedFunction(

    function (stringUrl){

        app.beginPriv();    // Explicitly raise privilege

  app.launchURL(stringUrl,true);

  app.endPriv();

});

//error message received while trying to use button in adobe reader dc

NotAllowedError: Security settings prevent access to this property or method.

Doc.subject:5:Field SEND WITH GMAIL:Mouse Up

//results from button use in adobe acrobat Xi

well it opens the tab and a new gmail is ready to compose

var openGmail = app.trustedFunction(

    function (stringUrl){

        app.beginPriv();    // Explicitly raise privilege

  app.launchURL(stringUrl,true);

  app.endPriv();

});