locateFile() not called for .js with EXPORT_ES6

[jozefchutka]

Using emscripten 3.1.65 and -sEXPORT_ES6=1, the following .js is generated

function allocateUnusedWorker() {
                var worker;
                var workerOptions = {
                    type: "module",
                    name: "em-pthread"
                };
                worker = new Worker(new URL("ffmpeg-lgpl-simd.js",import.meta.url),workerOptions);
                PThread.unusedWorkers.push(worker)
            },


function findWasmBinary() {
            if (Module["locateFile"]) {
                var f = "ffmpeg-lgpl-simd.wasm";
                if (!isDataURI(f)) {
                    return locateFile(f)
                }
                return f
            }
            return new URL("ffmpeg-lgpl-simd.wasm",import.meta.url).href
        }

The problem is allocateUnusedWorker() is not calling locateFile() (as findWasmBinary() does) making it hard to customize the URL. Please enhance allocateUnusedWorker() to call locateFile() before constructing .js url

[sbc100]

This is kind of unfortunate. Ideally we would just use new URL(import.meta.url) since we know we are trying to load the same file that is currently running.... however that apparently breaks bundlers. See #22140.

I wonder if we need a new settings such as BUNDLER_FRIENDLY here since by default it would be really nice to just use new URL(import.meta.url) when we know we want to load ourselves.

[jozefchutka]

In my case, I am not using a standard https://... url, but a blob:https:// url as the main js. Same blob url I would like to use inside allocateUnusedWorker() to avoid any possible network related slow downs.