Order placed using Edge+IE Mode or IE11 was submitted twice
Clicked [Submit] button on ASP.NET(WebForm) page, data was registered twice to DB.
1. Problem only happens when using Edge+IE Mode or IE11 on client PC. No problem with Chrome or Edge.
2. If user clicks [Submit] button 5-6 minutes after inputting data, this problem will surely(100%) happen.(NG)
If user clicks [Submit] button within 1 minute after inputting data, only one record is registed.(OK)
Client PC: Windows 10 Enterprise 10.0.19044 N/A ビルド 19044 + IE 11.0.19041.1566