Errors on IOS v 9

[blairjo]

I have an old IPhone 4 for testing and my angular site was working fine on IOS v 8.
Yesterday, I updated the phone to IOS V 9.3.5 and the site started to crash during the angular initialisation.

The error is coming from this code in pdfmake :

if (distance < 0) {
  throw new Error('[BrotliDecompress] invalid distance');
}

I don't have a mac to debug this so tracking the issue down is difficult (I got the error above from a friend's mac)

Here's what I know so far:

• On newer IOS devices it is fine
• On browsers it is fine
• On older IOS devices it is fine on v8
• The problem only occurs when running the grunt minified build - if I run the unbuilt source it is ok.

Is this a known issue?

Thanks

[elirov]

Getting the same thing. Going to try upgrading to 0.1.27 and see if that helps...

[blairjo]

@elirov I had the same issue on 0.1.27 I think.
I have got round it for now by moving the pdf generation to the server instead, using the pdfmake node js library. There is a nice example showing how in the dev-playground folder in the source.

[elirov]

Darn.. I was hoping they fixed it in 0.1.27. What happens if we just comment out the if statement? At least, until they fix the issue...

[blairjo]

it's not that simple I'm afraid. That code snippet above is part of the BrotliDecompress library that is being sucked in as a dependency and browserified.
I see the recent releases were to do with "webpack hacks" so my suspicion is that something odd is happening there. I don't use browserify or webpack though, so I don't know too much about them.

If I were you, if you are able to move your code to the server, I'd do that.

[liborm85]

Some versions included "webpack hacks" because some fonts could not be loaded. It was fixed in new version fontkit.

Brotli is dependency of fontkit I do not know what to use it, but for this library I'm not create any webpack hacks.

I don't know where the problem is. And I don't have iOS for testing...

[blairjo]

I don't have access to a mac for debugging so I can't help too much either I'm afraid.
My best guess is that there is some conflict between the grunt minification process and whatever webpack does. I say that because if I don't minify the code it seems to work ok.

Having said that, I'm not sure it explains why it would work fine on IOS 10 / browsers etc..

[pablomaurer]

Now I would like to join the club, and I have all the hardware required to debug this.

While trying to figure out more, I did setup up an ionic-2 project and included pdfmake again. And see there in ionic-2 it works on IOS9perfectly fine.

So it has something todo with those module bundling stuff I'm not into. In ionic-2 they use webpack and rollup in ionic-1 I use a gulpfile with browserify and tsify..

So I tried to use webpack in ionic-1 doesn't help, but is much faster =)

fails

• IOS9 & ionic-1 with browserify, tsify
• IOS9 & ionic-1 with webpack

works

• IOS9 & ionic-2
• IOS10 & ionic-1

I'm switching to cordova-pdf-generator, because even this got fixed,it's way to slow with some many images on older devices.

But ping me if you have an idea of what i can test.

[ZaDarkSide]

I have the same problem on iOS 9.3.5 iPad Mini on Safari, can anyone please fix this?

I have opened a new issue here too foliojs/brotli.js#18

[liborm85]

Follow here: foliojs/brotli.js#18