How can I access ut.env in Pre-Loader Scope?

[loldenburg]

For some debugging purposes, it is helpful to send error messages to our error tracking tool or the console, but we want to do this only on non-production environments for most errors.

So usually we refer to a function that does this logging for us depending on whether window.console is not undefined and whether we are not on production (utag.data["ut.env"] !== "prod").

In Pre-Loader Scope, ut.env is not available. What ways do I have to check what environment I am on there?

[dan_george · Accepted solution]

Hi @loldenburg

That is correct, Pre-loader scoped extensions are ran before the Tealium library runs so utag is unavailable.

You would need custom code to scrape the page and check for /dev/ or /qa/ utag.js. Something like:

a=document.getElementsByTagName("script");
for (var i=0; i<a.length; i++){
  if(a[i].src.indexOf("/dev/utag.js") > 0 || a[i].src.indexOf("/qa/utag.js") > 0) {
    console.log(a[i].src);
  }
}

Hope this is helpful.

Cheers,

-Dan

[loldenburg]

HI @dan_george, thanks, that is of course quite some workaround, it also does not work when switching environments with a proxy, but it is better than nothing. If there is a proxy-compliant way of doing it, let me know.

[thyngster]

Hi @loldenburg, you may want to try using the following to grab the current environment from a Pre-Loader Scoped Extension.

window["utag_data"] = window["utag_data"] || {};
window["utag_data"]["tealium_env"] = document.currentScript.src.split('/').reverse()[1]; 

This should be pretty compatible these last days , except for IE (#sigh), you may rely on the getElementsByTagName('script') as failover if document.currentScript is undefined for some reason.