So, how to actually use userscripts? :)

[097115]

Hi!

From the docs, I understand that Vieb supports Greasemonkey-like userscripts. So, I create some simple script, like this:

// ==UserScript==
// @name            Twitter to Nitter
// @description     redirects Twitter to Nitter
// @namespace       some
// @author          some
// @match           https://*.twitter.com/*
// @grant           none
// @run-at          document-start
// ==/UserScript==
if (location.href.includes("mobile.twitter.com")) {
    window.location.replace(window.location.href.replace("mobile.twitter.com", "nitter.net"));
} else {
    window.location.replace(window.location.href.replace("twitter.com", "nitter.net"));
}

Then, save it as twitter-nitter.user.js in ~/.config/Vieb/userscript/gm/ or ir ~/.vieb/userscript/gm/ (I'm on Ubuntu), add set userscript to ~/.viebrc, launch Vieb (version 11.0.0), open a random Twitter link, and -- no redirect happens :) (it does happen in Firefox with Tampermonkey, though).

So, what am I missing? :)

[Jelmerro]

Okay, so there are 2 bugs that cause this to not work, I'll fix both in the future, but for now you could make it work by changing the following:

• Add a blank line between the comments above and the if statement, this causes the script to be mixed with the header at the moment, this is what is actually breaking the script currently.
• Secondly, I wasn't aware that single values were accepted for the match option, I thought those should always be arrays, so that's not actually being parsed, meaning this will run on any page currently. So for now, this script will work as expected:

// ==UserScript==                                                               
// @name            Twitter to Nitter                                           
// @description     redirects Twitter to Nitter                                 
// @namespace       some                                                        
// @author          some                                                        
// @match           https://*.twitter.com/*                                     
// @grant           none                                                        
// @run-at          document-start                                              
// ==/UserScript==                                                              
                                                                                                                                           
if (location.href.includes("mobile.twitter.com")) {                             
    window.location.replace(window.location.href.replace("mobile.twitter.com", "nitter.net"));
} else if (location.href.includes("twitter.com")) {                             
    window.location.replace(window.location.href.replace("twitter.com", "nitter.net"));
}                                                                               

But I'll make sure that in the future your version will work only on twitter like it should. Though keep in mind that this specific userscript is not needed, as the very same can be achieved with the redirects setting, like so:

:set redirects+=^https?://(\w+\.)?twitter\.com/?(.*)~https://twiiit.com/$2

[Jelmerro]

I also noticed that the match pattern https://*.twitter.com/* is weird in that the . means that this only works for subdomains of twitter, not the main domain, so keep that in mind, the correct pattern should be https://*twitter.com/* instead (though it still needs to be fixed to work at all for single entries).

[Jelmerro]

And you are very sure that userscript is enabled? Then I don't have any clue what it could be. You did not change the userscriptscope did you? What is the output of :set userscript? userscriptscope? at the moment?

[097115]

Sorry! Indeed my bad it was, something in the script itself was wrong. I copied the code once again, and now it does try to show an alert dialog on every page :)

However, the Twitter-Nitter one still doesn't redirect... You spot anything bad in the code?

[097115]

(I noticed that Vieb can make redirects itself, thank you for that hint, it's more like I'm trying to understand the rules and / or limitations of Vieb's userscripts...)

[097115]

Aha, as soon as I removed Google test userscript, Twitter-Nitter one started to work... Will continue to experiment :)

Thanks once again for all your time and support !

[Jelmerro]

Glad it works now, I believe the duplicate script problem could be because of a duplicate GM header identifier, I'm still looking into that, hope to get it fixed soon as well.