System copying shortcuts don't work with mitmweb

Steps to reproduce the problem:

1. mitmweb - web browser opens
2. highlight any text on the page
3. use Cmd+C system shortcut (standard for copying text on macOS)

Result: nothing is copied - clipboard remains as-is.

Expected: highlighted text is copied to clipboard.

Any other comments? What have you tried so far?

Right clicking and hitting copy works, but this is still a massive usability issue.

This has been an issue since at least v2.0.2 - but maybe earlier, and is still a problem on the latest version.

I have had this problem for about a year, using multiple different Macs, so I don’t think this is something unique to my current setup.

Have searched, but there don’t seem to be any issues mentioning this, surprisingly.

System information

Mitmproxy: 3.0.2 
Python:    3.6.4
OpenSSL:   OpenSSL 1.0.2n  7 Dec 2017
Platform:  Darwin-17.4.0-x86_64-i386-64bit

[moo-im-a-cow]

@uson1x try clearing your browser cache

i was just about to comment that i had this problem with 5.0.1,
looked in the source, app.js line 191, it didnt have metakey
while i was writing “5.0.1 doesnt have metakey in the source”, i thought to clear the chrome cache, and that fixed it

i havent looked at what build tool is used for the javascript, but i know some build tools can add file hash to the request urls to prevent caching,
so the request to app.js would be “app.js?abcdefghijk”, or possibly “app.js?v=5.0.1”, each update is seen by the browser cache as a new file

[mhils]

Thanks y’all!