There is no built-in way to do it. You would have to write a custom script that unvotes all downvotes by going through each user's downvotes.
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RE: is there a way to remove all downvotes made so far?
RE: load client side js library
The theme this forum is using loads pulling.js as a requirejs library
And this is the library that's loaded https://github.com/nodebb/pulling
RE: HTTPS Error Message After Upgrading to 1.15
@abarnes hey there, and thanks for posting!
In the write API plugin, this was originally a configurable option via the ACP, but in this new code we decide to turn it on or off based on the configured URL.
I did not anticipate this usage, my apologies! I will try to come up with a suitable alternative for auto-detection, and failing that, I'll just make it a configurable option again.
RE: Question | Returns the response button to the previous location
You have to modify persona to go back to the old style. Then changes are in https://github.com/NodeBB/nodebb-theme-persona/pull/507/files.
This plugin allows you to exclude certain topics from search results.
RE: Section name not being included in breadcrumb
That could be due to a loop in your category hierarchy, that code is in a while loop and if a category is a parent and child of another category by mistake it will never exit that loop.
Make sure your category tree doesn't have any loops.