we test Qt’s demo in Examples\Qt-5.12.6\webenginewidgets\simplebrowser on windows 10 platform,after the simple broswer running, enter the url: https://helpx.adobe.com/flash-player.html ,found that in the version 5.12.1/5.12.4 the flash can be load correctly, but in the version 5.12.5/5.12.6/5.13.2, the flash cannot be loaded.

| For Gerrit Dashboard: QTBUG-80696 | ||||||
|---|---|---|---|---|---|---|
| # | Subject | Branch | Project | Status | CR | V |
| 284128,2 | Fix pepper flash plugin permission | 5.12 | qt/qtwebengine | Status: MERGED | +2 | 0 |