New Sidebar not working on IE11

[jacestk]

Steps to reproduce

1.juste clic on the item ion sidebar (Favorite, Shares,...)
2.nothing happens

Expected behaviour

List of items should appears.

Actual behaviour

Got an error in JS Debogger

Server configuration

Operating system:
CENTOS 7
Web server:
Apache 2.4
Database:
MariaDB 10
PHP version:
php 7.1

Nextcloud version: (see Nextcloud admin page)
14.0.3

Updated from an older Nextcloud/ownCloud or fresh install:
NC 12 > NC 13.0.6 > NC 14.0.3
Where did you install Nextcloud from:
Official

Browser log

SCRIPT438: L’objet ne gère pas la propriété ou la méthode « abort »
Fichier : sharedfilelist.js, ligne : 176, colonne : 5

	reload: function() {
		this.showMask();
		if (this._reloadCall) {
			this._reloadCall.abort();

[nextcloud-bot]

GitMate.io thinks possibly related issues are #8702 (icon-white class doesn't work on IE11), #10289 (Sidebar standardization), #5472 (TempManager is not working), #5138 (SCSS not working after reboot), and #7952 (SMTP over STARTTLS on 587 not work).

[danxuliu]

The JavaScript error is not related, even if it seems to be ;-) Also note that it does no longer happen since Nextcloud 14.0.4 (specifically, 9801b5a).

The fix for the collapse button in Internet Explorer 11 is in #15384.