I am trying to open the customized edit/new form (/Editform.aspx?ID=xx) in ie11. I have created the forms using Poweapps. And in ie 11 its showing loading image.Error message in F12, 'Promise' is undefined'.
Are you using SharePoint custom forms? Have you tried clear cache on IE or open it in an InPrivate mode?
To test this issue, I create a custom form on IE and it works fine without any issues.
Could you please clear cache then try again with it? If you are still having the issue, please feel free post back.
Besides, please post PowerApps related issues on PowerApps forum so that you could get the most qualified solutions for you issues. Thanks for your understanding.
Hi @Mabel Mao
Thanks for the reply. I am using powerapps custom form.I have tried clear cache on IE or open in an Inprivate mode.
But its not working. Today i am getting this "Unable to get property 'peek' of undefined or null reference" error in IE in Developer tools. But its working for chrome and Edge browser. Its showing error only when we are using the direct url. eg:/list/listnam/editform.aspx?id=xx
This issue does not appear to be resolved. I have created a SharePoint custom form and it loads without issue in both Chrome and Opera. In IE 11, the loading image persists and there is an alert: "Promise undefined." As suggested previously in this thread, I tried clearing cache but that didn't correct the problem. Expecting our users to open it in private mode is not practical, so I didn't pursue that suggestion.