QR scanner through web browser
< script type = "text/javascript" src = "https://cdnjs.cloudflare.com/ajax/libs/webrtc-adapter/3.3.3/adapter.min.js" > </ script > < script type = "text/javascript" src = "https://cdnjs.cloudflare.com/ajax/libs/vue/2.1.10/vue.min.js" > </ script > < script type = "text/javascript" src = "https://rawgit.com/schmich/instascan-builds/master/instascan.min.js" > </ script > < script src = "https://unpkg.com/sweetalert/dist/sweetalert.min.js" > </ script > < h2 > QR Scan </ h2 > < div id = "app" > < div class = "row" > < div class = "col-md-12" > < div class = "preview-container" > < video id = "preview" > </ video > </ div > </ div > </ div > < div class = "row" >