I am working on a slack app and I want it to open a iframe (or webpage) upon entering a slack command so that I can make REST requests and have more flexible styling options compared to what is offered in slack's dialog API.
Is opening a popup iframe or webpage using slack API supported?
I couldn't find this anywhere in Slack's API documentation, but I have used Google Drive's slack integration, and their file picker (the popup from the "Add from Google Drive" flow) looks like it presents an iframe/webpage because the styling is much different than the other dialog flows.
I don't want this to redirect to the user's browser, but to show a web modal popup from the slack app.
Thanks!
Unfortunately, it's not supported. I know you don't want to do this but the only possible way to open a web page in web browser.