Electron webview tag does not execute callback after executing JavaScript (CoffeeScript)

Question

I have a webview tag, and I'm trying to execute javscript and read the result, as per the docs: Electron webview tag docs. However the callback is never executed:

@webviewOutlet.executeJavaScript("10+2", (n)-> console.log "#{n}") #Nothing in console

I'm using the WebView in NodeJS as part of an Atom package.

G07cha · Accepted Answer · 2016-06-23 05:40:55Z

2

Here is missing required parameter userGesture and as a result, you passing function where expected boolean variable.

Try this:

@webviewOutlet.executeJavaScript("10+2", false, (n)-> console.log "#{n}")

edited Jun 23, 2016 at 5:40

answered Jun 22, 2016 at 7:40

G07cha

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jotch · Accepted Answer · 2016-12-23 04:37:36Z

0

The second parameter for the executeJavaScript function is not the callback, it is the userGesture.

The correct way to use this function is the following:

webview.executeJavaScript('10 + 2', false, (n) => { console.log(n) })

Of course, change the second parameter userGesture to your needs.

Documentation

answered Dec 23, 2016 at 4:37

jotch

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