IE 11: Cannot read property '0' of undefined

[deftdawg]

Har files generated with IE 11 fail with the error message: Cannot read property '0' of undefined

function getLastTiming(har, run) {
  const harEntries = har.log.entries;
  const pageId = har.log.pages[run].id;  // <-- har.log.pages is undefined

Files are valid if run against http://www.softwareishard.com/har/viewer/

ie11-google.com.har.txt
ie11-google.ca.har.txt