BreezeJS's 1.4.1 isolateES5Props causing Out of Stack Space error in IE 8

BreezeJS's 1.4.1 isolateES5Props causing Out of Stack Space error in IE 8

Using 1.4.1 of BreezeJS we found that some new code added to Isolate ES5
Properties is causing IE 8 to have the following error:
Error getting metadata: Metadata import failed for breeze/breeze/Metadata;
Unable to process returned metadata:Object doesn't support property or
method 'getPrototypeOf'
We tried using both Uber Proto's getPrototypeOf
(https://github.com/daffl/uberproto) and es5-sham
(https://github.com/kriskowal/es5-shim) but both result with the same
issue.
We also tried removing the regular json.parse and using json2's version
with the same results.
Metadata import failed for /breeze/breeze/Metadata; Unable to process
returned metadata:Out of stack space
Chrome, Firefox, and IE 9+ work without issue, but IE 8 support is
required. We can comment out the line to get it to work:
// isolateES5Props(proto);
But I'm guessing that will cause issues somewhere down the line.