Simplify message content

I've applied a fix to allow iframe from stripe, and its working fine at my end android facebook app broswer

But if still there is a problem then we may need to change current stripe checkout flow to stripe hosted checkout

Correct above in simple terms

Here’s a simpler and clearer version of your message:

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I've applied a fix to allow Stripe's iframe, and it's working fine on my end in the Facebook browser on Android.

However, if the issue still persists, we might need to switch from the current Stripe checkout flow to Stripe's hosted checkout page.

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Let me know if you want a more formal or more casual version.