Hi, running ´ng serve --prod´ and opening the application in Firefox ESR 45.9.0 throws an exception. > TypeError: this is undefined ### Versions ``` ng: 1.6.5 npm: 5.6.0 Node: 8.9.4 ``` ### Repro steps * ng new foobar * cd foobar * ng serve --prod * Open in Firefox ESR 45.9.0 ### Observed behavior Blank page, error in console ### Desired behavior Everything works as expected BR Jakob