[iOS] Pinch zoom not working properly

[lstkz]

• [x] Check FAQ and Caveats
• [x] Search if there's already one reported in Issues
• [x] Prepare a JSFiddle reproducing the issue
  • https://mdbootstrap.com/snippets/standard/adamjakubowski/3610377
• [x] Provide a page or source code where the issue can be checked
  • https://mdbootstrap.com/snippets/standard/adamjakubowski/3610377

When making a pinch zoom gesture it doesn't zoom properly. The container jumps in different directions, and it's very glitchy. You can reproduce it in the official live demo.
Browser: Safari Device: iPhone