Thanks. (And ugh, but that's how these things go.)
On Fri, Mar 8, 2019 at 2:40 PM Boris Zbarsky <bzbar...@mit.edu> wrote:
> On 3/7/19 10:27 PM, Martin Thomson wrote:
> > Is there a way that doesn't rely on eval or eval-like mechanisms?
>
> I suspect the only detectable thing here (and Jon might wake up tomorrow
> and tell me I'm wrong!) is that import('stuff') is a syntax error
> without the support but is not a syntax error otherwise.
>
> That means you need to trigger at least a new parse of some JS that you
> control to run the detection.
>
> Now you could probably manage this with something like (using non-inline
> scripts for all this stuff):
>
> <script>
> var oldError = window.onerror;
> window.onerror = function(...args) {
> /* check for syntax error */
> }
> </script>
> <script>function() { import(''); }</script>
> <script>window.onerror = oldError;</script>
>
> or so.
>
> -Boris
> _______________________________________________
> dev-platform mailing list
> dev-platform@lists.mozilla.org
> https://lists.mozilla.org/listinfo/dev-platform
>
_______________________________________________
dev-platform mailing list
dev-platform@lists.mozilla.org
https://lists.mozilla.org/listinfo/dev-platform
