Sorry for the Newbie question, but I don't see a relevant answer in searching.
I have a SP Online site with a sub-site for Human Resources (HR). I created a custom list for employee feedback for them. It's a very simple list with only 2 fields, EmpName (single line text) and EmpComment (multi-line text). I user PowerApps to create separate forms for Display, Edit and Create. I modified the Create form so it only shows the 2 relevant fields while hiding the other information (such as create date, modify date, etc.) I saved and published the PowerApp forms and it works fine as a (normal) callout process.
I swear this used to work in previous versions, but now SP strips out the relevant markup -- the error is "Warning: Some of your markup was stripped out. Try using the Embed command." So I edited the page again and tried to embed the link, but it still gets stripped. I'm sure there is a simple explanation, but (frankly) my sharepoint is a little rusty.
How can I get this entry form to pop-up as a modal dialog from a link on the page?