Browser Support & Polyfills
BuckleScript compiles to JavaScript ES5, with the exception of allowing to compile to ES6 module import/export.
For old browsers, you also need to polyfill TypedArray. The following OCaml standard library functions require it:
Int64.float_of_bits
Int64.bits_of_float
Int32.float_of_bits
Int32.bits_of_float
If you don't use these functions, you're fine. Otherwise, it'll be a runtime failure.