Tooltip on expansion panel

[ashygk]

Bug, feature request, or proposal:

Question

What is the expected behavior?

To have tooltips on expansion panel title header

What is the current behavior?

Tooltips and Expansion panel work separately

What are the steps to reproduce?

Providing a StackBlitz reproduction is the best way to share your issue.

StackBlitz starter: https://goo.gl/wwnhMV

What is the use-case or motivation for changing an existing behavior?

As per a requirement, need to have tooltips on expansion panel headers

Which versions of Angular, Material, OS, TypeScript, browsers are affected?

angular4
material 5.0.3
os windows
typescript 2.7.2
browsers chrome

Is there anything else we should know?

[josephperrott]

Closing, as this can already be done as shown here

[ashygk]

Doesn't work for me when added like below:
matTooltip="This is tooltip" in mat-expansion-panel-header
Using "@angular/material": "^5.2.4"

[noamyg]

Doesn't work for me either. matTooltip doens't show up anywhere when placed inside mat-accordion.

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