Does not work under macOS Catalina Version 10.15.4 about qlmarkdown HOT 15 OPEN

I couldn't get this to work on MacOS Catalina either, even after allowing it within System Preferences. What eventually worked was using instructions adapted from https://github.com/whomwah/qlstephen#permissions-quarantine:

brew cask install qlmarkdown
xattr -cr ~/Library/QuickLook/QLMarkdown.qlgenerator
qlmanage -r
qlmanage -r cache
killall Finder  # relaunch finder

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I looked in System Preferences / Security & Privacy / General and it was shown there.

I clicked 'Allow Anyway' then the next time the '"QLMarkdown.qlgenerator" can't be opened' message appeared there was an 'Open' button which I clicked.
It's now working fine.

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@christiangenco
1. brew cask uninstall qlmarkdown
2. Sudo spctl --master-disable # disable Gatekeeper.
3. restart macOS
4. Be sure, System Preferences / Security & Privacy > Anywhere is checked
5.

brew cask install qlmarkdown
xattr -cr ~/Library/QuickLook/QLMarkdown.qlgenerator
qlmanage -r
qlmanage -r cache
killall Finder  # relaunch finder

Tried it, did't work. Created a simple script to clean all the plugins I have in this directory form this dumb quarantine attribute, then ran your script, still nothing. I have Colorcode, Stephen, Markdown and qlvideo and JSON plugins. I only managed to make JSON working. It is just complete insanity how much extra unproductive work Catalina demands. All of this for the cuteness of the dark mode.

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@richardwo I did the same and it's working. Thanks!

Still I would consider this a workaround rather than a solution to the trust issue between the app and macOS.

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@Rabattkarte: I don't see this as a "workaround". Instead, I see Apple's opaque and nonsensical "security" measures as the only real issue. We're not behaving recklessly, and Apple will never "save" anyone with this nonsense; they simply burden us with "security measures" designed by their marketing department. What aggravates me is that I must do this (jump through Apple's hoops for granting a "security exception") over and over and over again. I truly resent it, and I tell them so at every opportunity. I think we all should complain - unless we want more of this.

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@Zeebrah

It is just complete insanity how much extra unproductive work Catalina demands. All of this for the cuteness of the dark mode.

For over 10 years now Apple's financial success is because of their hot pursuit of teen-aged girls. Are you surprised they really don't care what you think?

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@orchetect see issue #88. Also, already fixed in #95. Waiting for merge.

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This sounds like the enhanced security checking that was introduced in Catalina. See the discussion on #89 for some ideas on how to deal with it.

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Here's the error message in English:

I looked at #89, but didn't see anything that looked like a solution?

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@richardwo : This worked for me also. I'm used to dealing with this on full apps - don't know why it didn't occur to me to check it for qlmarkdown. Thanks for the reminder. :P

AFAIC, you could close this issue.

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qlmarkdown still isn't working for me on Catalina 😔

I just did a fresh install of macOS, installed qlmarkdown with brew cask install qlmarkdown, tried previewing a .md file in QuickLook, saw the markdown preview and thought I'd figured it out, then later saw the popup saying it can't be opened but NO PROBLEM I know exactly how to solve that (through System Preferences / Security & Privacy / General => "Open Anyway"), but a day later I'm back to the plain text markdown previews.

I just tried brew cask uninstall qlmarkdown and then running through @websocket98765's solution using xattr -cr, but QuickLook still shows plain text previews, and now isn't even complaining about malicious software.

Is there a bug bounty program for qlmarkdown? For me markdown previews are the killer feature of QuickLook. My computer is significantly less useful with this plugin not working. I'm considering downgrading to Mojave just for this plugin.

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@christiangenco
1. brew cask uninstall qlmarkdown
2. Sudo spctl --master-disable # disable Gatekeeper.
3. restart macOS
4. Be sure, System Preferences / Security & Privacy > Anywhere is checked
5.

brew cask install qlmarkdown
xattr -cr ~/Library/QuickLook/QLMarkdown.qlgenerator
qlmanage -r
qlmanage -r cache
killall Finder  # relaunch finder

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@Zeebrah
qlmarkdown and other plugins did not work when i updated the Catalina to 10.15.4. They all worked after applying the commands.

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Just did the update to macOS 10.15.5 and did NOT have QLMarkdown installed prior. Just installed it now and did the "Click OK" in the malware prompt, then click "Allow Anyway" in System Prefs dance a few times, and all is well. No Terminal commands needed.

Only issue is that while a Finder window is in Column mode, if the Preview pane is shown, it just shows an empty file icon and not a QuickLook preview as one might expect/hope. You have to press spacebar to see the QL rendering in the popup window. I'm hoping a system reboot might nudge this into working, but did this ever work with QLMarkdown? I don't see why it shouldn't, unless separate render API calls need to be implemented for it to work.

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lol.... well... I was right. Rebooting now makes the Preview pane render. But, uh... not in the way you'd expect.

I guess that's progress? 😅

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