Use DOM API instead of creating Trusted Types policy to append a markup

[shhnjk]

Trusted Types policy creation fails when there is a Trusted Type policy enforcement on the document and addResizeListener is called twice.
Use DOM API to create the same tree so that we don't need to make Trusted Types policy creation little more complicated.

[matiastucci]

@bvaughn any ETA for next release so I get this change? Thanks!

EDIT: I just pinned my version to 9.22.2

[Blacknikomo]

Hi! We faced an issue when react-virtualized tries to create the Trusted Policy entries several times.
We recreate some components according to the router state. Some of these components consume the React-Virtualized instances. Since every time we rerender components from a scratch, we also force Library to re-register Trusted Policies.

We have an instance, where CSP rules are strict. In our case, it's forbidden to reinitialize the Trusted policy. Hence the browser throws the error "Failed to execute createPolicy on TrustedTypePolicyFactory': Policy with name react-virtualized-auto-sizer already exists".

I didn't dive deeper into the issue, since in this commit the Trusted Types are completely removed, but if you need further details - let me know. I'll try to make a pen.

The main problem for now is: this change not appeared in the 9.22.3 version. I kindly ask you to publish the next version, which contains the fix.

[Blacknikomo]

Hi Brian! Can you have a look here, please?
@bvaughn