CodeSandbox.io has been freezing on Embed mode.

[GrapeCityKR-Marketing]

Hello Team,

Greeting from South Korea.
I am writing this email to ask for your help.

These days, we are reviewing the CodeSandbox.io as an main source code sharing platform for Korea Developers.
And we are really satisfying the feature comparing other competitors.

However, during testing the code sharing feature that you provided using embedding iframe code,
we’ve faced the issue that whole web browser has been freezing and shut down when it comes to click the “rdlx-json” file that we’ve created for our products.

We are using “Static” html templated and it works fine showing the results through CodeSandbox.io, but source code tabs for “rdlx-json”.

• https://codesandbox.io/s/arjs-invoice-sample-kr-6mgt8

You could easily reproduce this issue using attached HTML Sample code.
If you click the code tabs, codesandbox editor has been freezing ... and browsers too.

ARJS-CodeSandBox-Embed-Test.zip

I am sorry to trouble you, but could kindly check this issue?

Thanks,
Dylan.