I found a JS file that will become invalid with Cloudflare’s “auto minify” turned on.
The JS file (browser.bundled.js) and its auto minified output (browser.bundled.autominified.js) can be found at https://gist.github.com/andyli/7354be1431e82633cf75ce44fe0302bb
node -c browser.bundled.autominified.js shows SyntaxError: Invalid or unexpected token.
If you could provide a minimal example of both the source and minified result that creates an issue, that would help us escalate this to get it looked at and resolved in future.
Minimizing the example would be much easier if the JS-minify algo can be run locally.
I believe Cloudflare’s developer will find the example I gave useful enough. If needed, they can use creduce https://embed.cs.utah.edu/creduce/ to get a minimal example - given they can run the JS-minify algo on their machines.