![mat-expansion-panel "opens" with angular enter-leave animations, although current state is closed. · Issue #11765 · angular/components · GitHub mat-expansion-panel "opens" with angular enter-leave animations, although current state is closed. · Issue #11765 · angular/components · GitHub](https://user-images.githubusercontent.com/3656278/53063817-619f6000-347a-11e9-9e88-19d896beeb16.png)
mat-expansion-panel "opens" with angular enter-leave animations, although current state is closed. · Issue #11765 · angular/components · GitHub
mat-expansion-panel - styles get messed up if panel is a child of another element · Issue #13419 · angular/components · GitHub
![Angular Material 9|8 Add Expansion Panel and Accordion in Angular project using Material « Freaky Jolly Angular Material 9|8 Add Expansion Panel and Accordion in Angular project using Material « Freaky Jolly](https://www.freakyjolly.com/wp-content/uploads/2019/06/angular-material-expension-panel-demo.gif)
Angular Material 9|8 Add Expansion Panel and Accordion in Angular project using Material « Freaky Jolly
![Angular material expansion panel inside accordion - dragged item looks like two items being dragged · Issue #102 · SortableJS/ngx-sortablejs · GitHub Angular material expansion panel inside accordion - dragged item looks like two items being dragged · Issue #102 · SortableJS/ngx-sortablejs · GitHub](https://user-images.githubusercontent.com/520883/40910898-43a6a764-67e5-11e8-836a-7f43cea64eb9.png)
Angular material expansion panel inside accordion - dragged item looks like two items being dragged · Issue #102 · SortableJS/ngx-sortablejs · GitHub
![mat-expansion-panel example (Self aware panel) on material.angular.io doesn't work · Issue #8567 · angular/components · GitHub mat-expansion-panel example (Self aware panel) on material.angular.io doesn't work · Issue #8567 · angular/components · GitHub](https://user-images.githubusercontent.com/6603745/33079476-5a994a1c-cede-11e7-8f7b-5b68c8ef4236.png)
mat-expansion-panel example (Self aware panel) on material.angular.io doesn't work · Issue #8567 · angular/components · GitHub
a disabled mat-expansion-panel cannot be expanded programmatically · Issue #18171 · angular/components · GitHub
![mat-expansion-panel keeps contents of collapsed panels in DOM · Issue #20680 · angular/components · GitHub mat-expansion-panel keeps contents of collapsed panels in DOM · Issue #20680 · angular/components · GitHub](https://user-images.githubusercontent.com/3027415/94566715-f24f3c00-026a-11eb-9c09-139061cd4181.png)