Voice recording on iPhone by using Safari and HTML5

Question

I am developing a simple web application which only records a voice from microphone but I have some trouble.

HTML5 voice recording function works well on chrome and

Answer 1

Since iOS11, Safari now supports Media Capture API:

New in Safari 11.0 – Camera and microphone access.

Added support for the Media Capture API. Added ability for websites to access camera and microphone streams from a user's device (user permission is required.)

Announcement by Apple - broken link as of Jul 2018

A copy of the announcement on someone's blog

Therefore recorder.js will work now.