Installed styles have been purged

[saxamaphone69]

• Browser: Chrome 62
• Operating System: Windows 10
• Stylus Version: 1.1.7.2
• Screenshot:

Woke up this morning to find all my styles missing. Entering this into the console did not bring them back, and attempting to export/checking the IndexedDB, provided an empty json file.

I can create a new style and it appears.

[tophf]

Do you see the style objects in devtools -> Application -> IndexedDB?

[saxamaphone69]

That's where I looked, and it's completely empty.

[tophf]

I don't know how to reproduce this bug so I'm not sure if it's caused by Stylus, and not by Chrome.

[saxamaphone69]

Not sure either. Chrome hasn't updated overnight, but Stylus did.

If it helps, I did not have any of my userstyles using the new user.css format - I didn't even know it existed until I started trying to find out the issue.

[tophf]

The thing is, there's simply no code in Stylus that deletes the styles without explicit user action for one style at a time.

The only guess I have, is that for some reason IndexedDB didn't work so Stylus saved all styles in chrome.storage, which you can view using Storage Area Explorer extension or by running the following code in devtools opened on any Stylus page:

chrome.storage.local.get(null, console.log)

Click the output to expand it and see if the styles are there.

[saxamaphone69]

Nope. Dang, looks like I just got unlucky then. Strange, never had an issue and have been using Stylus since the fork from Stylish, and have been thoroughly enjoying the updates. That should teach me to update my style without pushing the changes to GitHub!

[tophf]

Looks like something happened to the browser profile and corrupted IndexedDB.
I'll see if I can implement "timemachine" that would backup the styles from IndexedDB into another type of storage and allow rolling back.

[saxamaphone69]

This just happened again. Latest Chrome and latest stable release (63, 1.1.8).

Chrome open, editing my style as usual. Made a change to a line, go to save to see the results, but the button refuses to press. I try the keyboard shortcut. Still refuses to change. I open up the console on the Stylus page, no errors reported. I go to close the editing window, but the alert/popup saying I have unsaved changes pops up. I click Stay. I then try going back to manage. Same popup. I try deleting the line I had just changed, no luck. Still no errors or warnings in the console. I then just leave the page anyway and close the tab I was working on, just in case. I open it back up and everything seems normal, but I still can't make changes. I try creating a new userstyle and it never appears in the manage page. I close Chrome, open it up, and all my styles have been wiped again, but this time the userstyle I tried creating which wouldn't appear just earlier is there. I've checked the IndexedDB and it has the key path id 9, so that means it knows it's the 9th style, but the previous 8 aren't there.

I know that doesn't reduce the test case, but this time it occurred while Chrome was still running and I attempted to save, but it refused to let me save. I'll muck around now and see if I can get it happening again.

[tophf]

Still sounds like a bug in the browser or a broken user profile. Like I said, Stylus simply doesn't have code to mass-delete styles except when you manually import a json in the manager and then press the undo button to roll back the import, in which case the imported styles are deleted and the old styles are restored.

P.S. I'm keeping this issue "open" only as a reminder to myself about the "timemachine" feature, not as an invitation to provide more details about the bug. There's nothing we can do about it because it's definitely not caused by our code.

[tophf]

Another user found out the culprit was CCleaner.
Make sure to exclude "HTML5 storage" or just everything browser-related.

[cubedj]

that's exactly why I'm not using CCleaner... a realy long time ago it corrupted my Windows registry so many times I had to do inplace upgrade every half year until I finally found out and ditched that bitch and I never had to reinstall Windows again ever since... nevertheless this kind of bug happened to me a few times as well and every time it was because the db in userprofile has been corrupted (probably by Chrome itself) in a way that Stylus was able to read from it but when trying to save - the data was never written despite the fact there was no exeption thrown both from Stylus and Chrome.. in fact Chrome sometimes does the completely same thing with its own settings... it trained me to export the Styles quite often but the rollback feature would be fine ;)

[MarkRH]

I'm on Firefox 58.0.2 and Stylus 1.2.7 and I somehow lost all my styles after either clicking on Manage (and not really doing anything) or possibly after clearing parts of History that managed to wipe what Stylus had saved as well. Luckily I had a stylus.json file available to re-import. Perhaps I will try and re-create.

Should going to History -> Clear all History wipe out Stylus if say everything is checked?