The TabStrip loading from Ajax (LoadFromContent) only supports GET method.   This is shortsighted as quite often some content needs to be delivered via HttpPost.   For the MVC component it should also support sending the model (so a partialView can be returned from the Controller).

When focusing the comopnent a visual indication aims to show the user that something has changing during keyboard navigation. In the TabStrip there is no such indication. This also violates WCAG 2.4.7.

https://demos.telerik.com/kendo-ui/tabstrip/keyboard-navigation

not sure 100% if this is our issue or yours but we recently implemented dark theme using kendo.black.min.css.  On line 3485 (in our version) it applies a glass.png texture to selected objects, giving it a glowing highlight.  That's great.  However, displaying a floating window, it also has k-state-active on it, and we get a horizontal bar in the center of the popup caused by this css.  See photo.

Reproduction of the problem

https://dojo.telerik.com/AGaceyAD

Current behavior

Tabs exceeds parent container.
https://www.screencast.com/t/H4lCTxwwr

Expected/desired behavior

Tabs should wrap to the next row.

Environment

• theme: less themes
• Kendo UI version: 2022.2.510
• Browser: all

Bug report

TabStrip items are not receiving focus when navigating. Only the disabled items receive k-focus class.

Reproduction of the problem

Scenario 1:

1. Open the Dojo - https://dojo.telerik.com/@NeliKondova/ucOToMUD/2
2. Navigate using the keyboard

Scenario 2:

1. Open the same Dojo and select a tab different than Tab 1

Current behavior

Scenario 1: The items could not be focused. The k-focus class is applied only to the 'Tab 3' tab which is disabled.
Scenario 2: The first Tab receives the k-focus class for a moment and appears as focused, while a different tab is selected

Expected/desired behavior

The tabs in the TabStirp should receive focus.

Environment

• Kendo UI version: 2023.1.425
• Browser: [all ]

Bug report

The selected tab's text is not readable with the main-dark theme

Reproduction of the problem

1. Open the TabStrip Overview demo - https://demos.telerik.com/kendo-ui/tabstrip/index?autoRun=true&theme=material-main-dark

Current behavior

The background of the Selected Tab is white and the text is not readable

Expected/desired behavior

The background of the Selected tab should contrast to its text

Environment

• Kendo UI version: 2023.2.718
• Browser: [all]

Bug report

When NVDA is turned on the navigation in TabStrip is not working.

Reproduction of the problem

1. Open the TabStrip demos - https://demos.telerik.com/kendo-ui/tabstrip/index
2. Try to navigate between the tabs using the arrow keys.

Current behavior

The selection of the item is not changed.

Expected/desired behavior

It should be possible to navigate between the tabs in the TabStrip when NVDA is turned on.

The issue is a regression starting with 2022 R3 (2022.3.913) release.

Environment

• Kendo UI version: 2023.3.1114
• Browser: [all]