Slotable
 The Slotable mixin defines features that allow nodes to become the contents of a <slot> element — the following features are included in both Element and Text.
 Properties
  - 
Slotable.assignedSlot Read only 
  - Returns the 
<slot> the node is inserted in.  
 Methods
 None.
 Specifications
    
 | 
Desktop | 
 | 
Chrome | 
Edge | 
Firefox | 
Internet Explorer | 
Opera | 
Safari | 
| Basic support 
 | 
 53 | 
 No
-  No
 
-  Under consideration
 
 
 | 
 63
-  63
 
-  59
Disabled  
 
- Disabled From version 59: this feature is behind the 
dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config. 
- ? — 59
Disabled  
 
- Disabled Until version 59 (exclusive): this feature is behind the 
dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config. 
 
 | 
 No | 
 40 | 
 10.1 | 
assignedSlot 
 | 
 53 | 
 No
-  No
 
-  Under consideration
 
 
 | 
 63
-  63
 
-  59
Disabled  
 
- Disabled From version 59: this feature is behind the 
dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config. 
- ? — 59
Disabled  
 
- Disabled Until version 59 (exclusive): this feature is behind the 
dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config. 
 
 | 
 No | 
 40 | 
 10.1 | 
 | 
Mobile | 
 | 
Android webview | 
Chrome for Android | 
Edge Mobile | 
Firefox for Android | 
Opera for Android | 
iOS Safari | 
Samsung Internet | 
| Basic support 
 | 
 53 | 
 53 | 
 No
-  No
 
-  Under consideration
 
 
 | 
 63
-  63
 
-  59
Disabled  
 
- Disabled From version 59: this feature is behind the 
dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config. 
- ? — 59
Disabled  
 
- Disabled Until version 59 (exclusive): this feature is behind the 
dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config. 
 
 | 
 40 | 
 10.1 | 
 6.0 | 
assignedSlot 
 | 
 53 | 
 53 | 
 No
-  No
 
-  Under consideration
 
 
 | 
 63
-  63
 
-  59
Disabled  
 
- Disabled From version 59: this feature is behind the 
dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config. 
- ? — 59
Disabled  
 
- Disabled Until version 59 (exclusive): this feature is behind the 
dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config. 
 
 | 
 40 | 
 10.1 | 
 6.0 |