opencv-electron: Couple breaking issues using opencv4nodejs with electron.

Hi. I’m using electron-vue, and despite a lot of troubleshooting (even attaching to the electron main process), I am getting devtool disconnects that are both random and consequent.

Here is a list of functions that I’ve found to cause breakage. I haven’t gotten any further programming, but I hope this can be enough to make opencv4nodejs more stable as I love this wrapper!

mounted() {
    // issues are the same no matter if you use camera or video
    // this.wCap = new cv.VideoCapture(1)
    this.wCap = new cv.VideoCapture(path.resolve('../backend/media/video.mp4'))

    this.wCap.readAsync(frame => {
        console.log(frame) // null
    })

    // console.log(this.wCap.read()) // crashes devtools in electron, is VideoCapture not ready?

    // setInterval(() => {
    //     console.log(this.wCap.read()) // works ok, returns:
    //     // "{"step":3840,"elemSize":3,"sizes":[720,1280],"empty":false,"depth":0,"dims":2,"channels":3,"type":16,"cols":1280,"rows":720}"
    // }, 500)

    // setInterval(() => {
    //     console.log(this.wCap.read()) // too fast? returns a lot of the following
    //     // "{"step":0,"elemSize":0,"sizes":[],"empty":true,"depth":0,"dims":0,"channels":1,"type":0,"cols":0,"rows":0}"
    // }, 10)

    setInterval(() => {
        let frame = this.wCap.read()
        // below causes crashes randomly and disconnects devtools, no matter the interval (tested 500 and 2000)
        // zero error output, not sure where to see the errors
        let base64 = cv.imencode('.png', frame).toString('base64')
    }, 500)
},

Versions VS Code version: 1.21 Electron version: 1.8.7 Chromium: v59 Node: 8.2.1 opencv4nodejs: 3.5.0 opencv: prebuilt windows, 3.4.1

I have tried rebuilding opencv4nodejs to electron.