Using jQuery in strict mode generates a lot of warnings.
Hello!
When using jQuery in JavaScript strict mode, the library generates a lot of warnings. These warnings tend to be valid, pointing to problems waiting to happen. It also makes analyzing your own code tedious.
To reproduce:
Start an up-to-date version of Firefox.
Enable the strict mode by entering about:config in the address bar and setting javascript.options.strict to true.
Run JS code that makes use of jQuery - ideally a test suite which covers all code paths of the library.
Review the output in the JavaScript console.