undefined function when using csp version

[fredtma]

I have used app-router with polymer on a web app.
Building the chrome app with the chrome dev tool, I need to use the csp version but this fails with the below error.

[fredtma]

It seems like window.history.pushState && window.history.replaceState are not defined in Chrome Apps and that is what causing the issue.
Has any ever encounter this and solved it?

[erikringsmuth]

Interesting... it looks like Chrome disable window.history altogether.
https://developer.chrome.com/apps/app_deprecated

It looks like Backbone.js has the same issue.
jashkenas/backbone#3112

Maybe there's a polyfill that'll work around it but I'm not sure.

[jmalonzo]

@fredtma Hi! Were you able to find a workaround for this? I'm not sure how we can replace window.history but if you found a workaround please let us know. Closing this for now.