IE11 TypeError

[pierrecapo]

IE11 TypeError

[infinity77]

Hi Pierre,

Thank you for your investigation on the matter. I have a backup plan anyway to avoid having to deal with IE, luckily enough there are Python libraries supporting the Chromium interface and I’m going to switch to those.

[PierreCapo]

Hello Andrea,

I'm not an expert on that topic, and I'll need to investigate and spend some time on it. To give you some visibility, I'm a bit busy right now, I will be only able to investigate and find a solution next week only.

If this is urgent, here are my thoughts on the topic if you want to investigate furthermore :

• It's weird because the ts compiler output ES5 code which should be compatible with IE11
  : https://github.com/PierreCapo/treeviz/blob/master/packages/treeviz/tsconfig.json#L4
• Seems like indeed the setProperty function can be found in https://github.com/PierreCapo/treeviz/blob/master/packages/treeviz/dist/index.js, so for whatever reason this code is not compatible with IE11 whereas the ts compiler outputs ES5 code.

Sorry for delaying the answer, I hope those explanations will help you.

Have a good day.

[infinity77]

Hi Pierre,

looking a bit on the debugging side, it appears that (at least part of) the reason is that the code uses "foreignObject" in two places (packages/treeviz/src/nodes/node-enter.ts and packages/treeviz/src/nodes/node-update.ts), and IE11 does not support foreignObject... do you think there is an alternative to that? I am sorry, I am really a noob when it comes to JavaScript, I have tried to look around on the web but I can't see any viable replacement.

Thank you.

Andrea.

[PierreCapo]

Hello Andrea, I have checked, and indeed, I reach the same conclusion as you. After adding es5 and es6 shim in the index.html file for ie 11 support:

• https://cdnjs.com/libraries/es5-shim
• https://cdnjs.com/libraries/es6-shim

I'm stuck with the setProperty and foreignObject issue. ForeignObject is not supported by IE and can't be polyfilled.
From what I have checked too, there is no straight forward solution, I'm sorry to say that, but seems like treeviz is not and won't be compatible for ie11.

What a nightmare that you have to support ie11 by the way, I feel bad for you.

Sorry not being able to help you on that one. Have a good day!