title: Open Mobile camera for barcode scan from web page
body: <p>i hope you'r all doing well. I am working on a project in which we ask the user to scan a barcode,I want if the user click on a specific button at mywebsite the mobile camera will open to scan the barcode but i am not sure how to open the mobile camera for that purpose, can somebody help me please ? Thanks in advance.
  Note : I am not providing the barcode but i just want to open mobile camera to scan any barcode at clicking  button.</p>