On Jan 27, 4:46 pm, Diego Perini <diego.per...@gmail.com> wrote:
> Juriy,
> we agreed that if we can write something in the DOM everybody else can
> delete/overwrite it and fold our testing.
This is not a context of code "folding" (as you put it). We can do
many bad things in many environments - the following assignment, for
example, will certainly "fool" my previous test:
window.alert = {
call: undefined,
set x(){ throw new Error() }
}
but not only does it require support for setters, it also takes an
actual effort on someone's part to just go ahead and "break" it on
purpose. `document.fileSize`, on the other hand, requires little
effort to overwrite, and, as I showed earlier, only takes one careless
form naming.
--
kangax
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