Object doesn't support property or method 'call' on IE11

[19jake68]

Description:
I update my webcomponentjs from v1.0.7 to v1.0.8 then after trying to run my polymer app, I encountered the error on the screenshot below.

My app works well on IE11 with webcomponentjs 1.0.7, and I encountered this yesterday after updating to 1.0.8.

Screenshot:

[gigmania]

Did you find a fix for this? I am getting the same error.

[jab]

FWIW I recently deployed a fresh PSK2 site to https://uproxy.github.io/uproxy.org/, ended up with webcomponentsjs v1.0.10 (latest release at time of writing), and am getting a similar error (SCRIPT438: Object doesn't support property or method 'values'):

[snuggs]

FWIW We have been getting the same error as well and didn't realize it until doing some Browserstack testing recently. /cc @brandondees @robcole

[dfreedm]

I think I need a bit more information here. Did you deploy with polymer build, and if so, at what version?

[notwaldorf]

@azakus we're seeing it on tests too, if it helps, but with "Object doesn't support property or method 'catch'". Poor Object, so unsupportive.

• https://travis-ci.org/PolymerElements/iron-form/builds/252597504
• https://travis-ci.org/PolymerElements/app-localize-behavior/builds/275151585

(the iron-form test was green before i re-ran it as a sanity check)

[dfreedm]

Thanks. I couldn't get this to reproduce with a simple element, so it must be related to some element or elements use of an API.

[ernsheong]

I'm seeing this in Edge 15

But oddly it only happens in development environment... 🤷‍♂️ And it proceeds to load a whole bunch of development dependency stuff:

Oddly staging/production build is fine, but I have no idea what made the difference.

[dfreedm]

It looks like this can happen when the developer tools are open in IE, as it adds some sort of FunctionWrapper object as an event listener, which is neither callable nor has a handleEvent object.

The check in event handling assumes that if an object doesn't have a handleEvent method that is is a callable function.

[cwenzelg]

We experience the same Problem with Version 1.0.20. The Page also is not loading even with a closed developer tool. We also get additional 2 Syntax Errors for webcomponents-lite.js. Sometimes the IE 11 Crashed because the script keeps running. Firefix, Edge, Chrome all work fine.
IE Version is: 11.98.16299.0

[dfreedm]

@cwenzelg that sounds like perhaps a different issue if you're seeing syntax errors.

[cwenzelg]

The fix worked, the new Version 1.0.21 fixed that issue for me. (well not the Syntax Error) but the call error. thank you