Fix IE <= 10 compat when using certain babel configurations
Fix IE <= 10 compat when using certain babel configurations

Some versions of babel does not transpile super() correctly for IE <= 10, if the parent
constructor has failed to run, then "this.listeners" will still be undefined and then we call
the parent constructor directly instead as a workaround. For general details, see babel bug:
https://github.com/babel/babel/issues/3041

The workaround in this commit was added as a fix for the issue described here:
https://github.com/Financial-Times/polyfill-library/pull/59#issuecomment-477558042

mo/abortcontroller-polyfill,mo/abortcontroller-polyfill,mo/abortcontroller-polyfill