Right click menu of embed object in layout is not correct

[zjuasmn]

Reported URL

http://nasa-mct-notebook.herokuapp.com/

TC Number Set

TC 71-83

Reproduction Steps

1. Select “ test Layout” from the tree view.
2. Right click on the embedded object.

Expected Result

should be a context menu with "View Snapshot", "Remove...", "Remove Snapshot.."

Actual Result

right click menu is browser default menu.

Screenshots

Issue Information

Frequency: Every time

Device: iMac

OS: macOS High Sierra

Browser: Chrome v62

[sdgun]

Test case Issue, Instead Right click > Click on the drop-down (Blue) arrow on the embedded display layout.