JavaScript modules in the legacy build

[benbro]

Is it possible to disable JavaScript modules in the legacy build?
According to this modules in workers are only supported in Firefox 114+ and Safari 15+ which means that we will have to stay on pdf.js v3.11.174 for the next few years.

[Snuffleupagus]

Is it possible to disable JavaScript modules in the legacy build?

No, since that'd add way too much maintenance/support burden; something that was mentioned in #17055 (comment).
(Please note that it's already a whole lot of work to keep the PDF.js library even running outside of the Firefox PDF Viewer, work that's nowadays only done by unpaid contributors such as myself and without anyone currently sponsoring that.)

According to this modules in workers are only supported in Firefox 114+ and Safari 15+

Please refer to the FAQ for the list of supported browsers: https://github.com/mozilla/pdf.js/wiki/Frequently-Asked-Questions#faq-support
Of particular note here is that we didn't make any changes to this list in PDF.js version 4.0, hence the browsers you mention were already required in PDF.js version 3.11.174.

[benbro]

There is Module Workers Polyfill (source). Is it reasonable to include it with the pdf.js legacy build? This might extend the legacy build support to Firefox 100 and Safari 13.

[benbro]

I'm also getting "top-level await" warning when trying to compile pdf.js in an angular project.