Used in AngularJS throws Cannot read property 'canvas' of undefined

[randallto]

Uncaught TypeError: Cannot read property 'canvas' of undefined
PNG.load._this @ jspdf.debug.js:15637
(anonymous function) @ jspdf.debug.js:15761

[jamescheuk91]

version 1.0.272 works for me

[randallto]

The js code still works and runs for 1.0.272 but when you F12 in chrome or IE11 you see there seems to be some issue initializing this reported to console. I think it is only when using in AngularJs.

[Eusebius1920]

I am getting exactly the same error, when using EmberJS (Ember-cli).
The app just won't start.

v1.0.272 works.

*Edit:
I just saw, that this error is also thrown in the basic.html sample in this repository.

[Eusebius1920]

I fixed my jspdf.debug.js by doing the following:

First I deleted lines 16868-16982.

Then I enclosed lines 15761-16205 with a try catch-handler:

try{
   // here lines 15761-16205
}
catch(err){
   console.log('That error occured again.');
}

Now at least my EmberJS-application started up again.

[Flamenco]

The problem is this line:
if (!canvas)

It should be (typeof canvas !== 'object')

[Eusebius1920]

I don't think that this is the problem, because the exception is caused by pdf being null/undefined.

html2pdf = function(html,pdf,callback) {
    var canvas = pdf.canvas; // pdf here is ===null or ===undefined. Exception is thrown here...
    if (!canvas) {
        alert('jsPDF canvas plugin not installed');
        return;
    }
    canvas.pdf = pdf;

        // other stuff

}

[Flamenco]

Yes. That's true. My local source file was off by 1 line...

Can you include a stack trace?

[Eusebius1920]

See opening post:

PNG.load._this @ jspdf.debug.js:15637
(anonymous function) @ jspdf.debug.js:15761

This is the reason why I enclosed this anonymous function with a try catch block.

[Flamenco]

This fixes it:
function html2pdf (html,pdf,callback){...}

instead of

html2pdf = function(html,pdf,callback)

And the file in lines 16869-16983 should probably not be included in jspdf.debug.js at all. This is an dependency definition file that used require.js and should be optional. I put if (typeof require === 'object') around that block.

[randallto]

Thanks Flamenco. I will test that out.