[whatwg] Proposal: Add window.getLastError (or modify invocation arguments of window.onerror)
james.m.greene at gmail.com
Fri Jul 12 11:30:43 PDT 2013
I'd rather get an Error-like duck-typed object with this shell info for
cross-domain requests than to not get a real Error object when the
unhandled error *is* from the same origin.
Adding the trace as another new argument to `window.onerror` is certainly
an option but the parameter list is getting long and I suspect that Error
prototypes may still gain additional properties in the future. Continuing
down this path of adding more parameters rather than just passing an Error
instance or Error-like object (or providing a separate supplemental method
like `window.getLastError()` seems like one of those decisions that might
results in infinite sadness in the future.
On Mon, Mar 11, 2013 at 5:50 AM, Simon Pieters <simonp at opera.com> wrote:
> On Tue, 05 Feb 2013 08:20:27 +0100, Elliott Sprehn <esprehn at chromium.org>
> On Mon, Feb 4, 2013 at 5:44 PM, Oliver Hunt <oliver at apple.com> wrote:
>>> That's tricky - what is your "stack trace"? You can very easily end up
>>> leaking private information across frames.
>>> window.onerror is triggered across non-same origin frames?
> Yes, but always with these arguments:
> "Script error.", "", 0, 0
> Simon Pieters
> Opera Software
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