How can I prevent deletion of frame and background from canvas, when backspace button clicked with selection of frame or background?
After deletion of frame, add new slide button not work and get error
TypeError: Cannot read properties of undefined (reading 'toJSON')
Or, are there any ways to add frame again after deletion to keep frame existence?
How can I prevent deletion of frame and background from canvas, when backspace button clicked with selection of frame or background?
After deletion of frame, add new slide button not work and get error
TypeError: Cannot read properties of undefined (reading 'toJSON')
Or, are there any ways to add frame again after deletion to keep frame existence?