@opentelemetry/auto-instrumentations-web not ES5 compatible

[mdbudnick]

What version of OpenTelemetry are you using?

0.30.0

What version of Node are you using?

14.20.0

What did you do?

I've installed "@opentelemetry/auto-instrumentations-web": "^0.30.0",
and in my project use import { getWebAutoInstrumentations } from '@opentelemetry/auto-instrumentations-web' with an OTLPExporter.

It works fine except for IE 10 and 11 because the module code in my client js is not ES5-compatible:

function(e, t, r) {
            "use strict";
            Object.defineProperty(r, "__esModule", {
                value: !0
            }), r.getWebAutoInstrumentations = void 0;
            const n = e("@opentelemetry/api"),
                o = e("@opentelemetry/instrumentation-document-load"),
                s = e("@opentelemetry/instrumentation-fetch"),
                i = e("@opentelemetry/instrumentation-user-interaction"),
                a = e("@opentelemetry/instrumentation-xml-http-request"),
                l = {
                    "@opentelemetry/instrumentation-document-load": o.DocumentLoadInstrumentation,
                    "@opentelemetry/instrumentation-fetch": s.FetchInstrumentation,
                    "@opentelemetry/instrumentation-user-interaction": i.UserInteractionInstrumentation,
                    "@opentelemetry/instrumentation-xml-http-request": a.XMLHttpRequestInstrumentation
                };
            r.getWebAutoInstrumentations = function(e = {})
}

i.e. default values are not allowed for arguments: function(e = {})

What did you expect to see?

ES5 compliant code that works in IE10 and 11. From what I have found in this project, ES5 compliance can (should?) be expected.

What did you see instead?

An error in my run.js: Expected ')' after the e in function(e = {}) because default argument values were introduced in ES6

Additional context

It is possible I am not doing something obvious, I am a backend engineer setting up OTel tracing in our company.

[mdbudnick]

Also this open-telemetry/opentelemetry-js#1368

[mdbudnick]

Created #1187

[dyladan]

This is not a bug since the packages in question aren't supporting es5

[mdbudnick]

Ok, closing this ticket. I have been working with the team on excluding it from IE clients. Thanks!