IE 11 Compatibility

[cranberrieman]

Are you reporting a feature request or a bug?

Bug

Provide detailed reproduction steps (if any)

1. Plugin version 1.2.0
2. Use with command: import CKEditor from 'ckeditor4-vue/dist/legacy.js'
3. Check in IE 11

Expected result

Proper work of editor

Actual result

Syntax error in build.
Error leads me to webpack://ckeditor/node_modules/ckeditor4-integrations-common/src/getEditorNamespace.js:47

Other details

With version 1.1.0 it works fine

[Dumluregn]

Unfortunately I can confirm this issue. We introduced this regression in #66. The ckeditor4-integrations-common package isn't transpiled to ES5, which means we try to use promises in IE11. I'm not sure if it can be fixed by modifying the webpack config or ckeditor4-integrations-common should be exported in the transpiled form.

Also it seems like a good idea to move on with #9.

[jacekbogdanski]

The fix is quite simple, we need to add additional processing to webpack, similar to what we have in other integrations, e.g. Vue - https://github.com/ckeditor/ckeditor4-vue/blob/master/webpack.config.js#L17-L29 (but as a part of the standard conversion).

[sculpt0r]

Blocked by: ckeditor/ckeditor4-integrations-common#12

[sculpt0r]

Since publish problem was solved: ckeditor/ckeditor4-integrations-common#12 (comment)

I unblock this issue, and move to failing tests on IE11.

[CKEditorBot]

Closed in #81