Android - Pull to refresh triggered when scrolling container inside a website

[Manuito83]

• I have read the Get Started - Installation section
• I have read and done the Get Started - Setup Android section
• I have read and done the Get Started - Setup iOS section
• I have already searched for the same problem

Environment

Technology	Version
Flutter version	1.27.0-4.0.pre
Plugin version	5.3.0
Android version	11
iOS version	14.4
Xcode version

Device information: Emulator + OnePlus 6T

Description

When trying to scroll a container (e.g. large textview with several lines) inside of a webpage, and if the main website scroll is at the top, the pull to refresh triggers.

Expected behavior: only the scrollable container/textview should scroll

Current behavior: inAppWebView's pull to refresh triggers.

Steps to reproduce

1. Use the current example project for inAppWebView
2. Browse to a website with a scrollable container (e.g.: https://javiercbk.github.io/json_to_dart) or even try to edit anything here in GitHub large enough to scroll (README.md, or a comment, etc).
3. Add as many lines as necessary in the container, so that it can be scrolled
4. Try to scroll up the container. If the main website scroll is at the top, the pull to refresh will trigger.
5. (If the main website scroll is not at the top, the container scrolls with no issues)

[pichillilorenzo]

Fixed with new release "5.3.0+1"