Right-click shows browser context menu on top of Blockly context menu

[ericrosenbaum]

Problem statement

Right-clicking on a block or on the workspace displays the browser context menu on top of the Blockly context menu.

Expected Behavior

Only the Blockly context menu should display.

Actual Behavior

Both menus display, with the browser's menu on top:

Steps to Reproduce

1. Visit the Blockly demo
2. Right-click on a block or on the workspace.

Stack Traces

Nothing in the console.

Operating System and Browser

I saw this on a MacBook Air, with Mac OS 10.11.6, Chrome 63.0.

It happened when I right-clicked in any way available (control-clicking, two-finger clicking the trackpad, right-clicking using a mouse).

Additional Information

I'm not seeing this bug on a MacBook Pro with Mac OS 10.12.6, Chrome 63.0.

[rachel-fenichel]

Can't repro on my linux box with chrome. Can't repro on windows 7 with ie10, firefox, or chrome 63.

I'm marking as low priority and we'll keep an eye out for it.

[jlaurens]

I am seeing this on macOS 10.13.1 but only on Chromium 64, not on Chrome 63 nor safari, nor firefox

[MNSDivya]

Issue seems resolved in chromeOS/Chrome
Windows OS/ Firefox,edge,IE.

Have not checked in MacOS.

[alirezaAsadi2018]

I have came upon the same issue on windows 10 with firefox 83.0 (64-bit).
This happened after I updated firefox 😞

Do you have any plan to fix this?
Thank you very much