Guy's I've been looking into this and I can't replicate the issue. We
need to establish what your sites have in common.
* Which version of selectivizr are you running?
* Which script library are you running?
* Are you using any .eot fonts?
* Are you using any other poly-fills (PIE, dd_roundies etc.)
* Can you remove all scripts (except selectivizr and your chosen
library) - does selectivizr run?
Ice, your site now seems to fail at DOMLoad event. This shouldn't be
an issue with the latest edge version.
Keith