"Challenges are not supported by Microsoft Internet Explorer."
Nowhere is it mentioned that internet access will be denied to visitors not using "major" browsers, as defined by Cloudflare presumably. That wouldn't sound too legal, honestly.
Below that: "Visitors must enable JavaScript and cookies on their browser to be able to pass any type of challenge."
These conditions are met.
I'm unsure what part of this isn't clear, major browsers, as long as they are up to date, are supported and should always pass challenges. Palemoon isn't a major browser, neither are the other browsers mentioned on the thread.
> * Nowhere is it mentioned that internet access will be denied to visitors not using "major" browsers *
Challenge pages is what your browser is struggling to pass, you aren't seeing a block page or a straight up denying of the connection, instead, the challenge isn't passing because whatever update CF has done, has clearly broken the compatibility with Palemoon, I seriously doubt this was on purpose. Regarding those annoying challenge pages, these aren't meant to be used 24/7 as they are genuinely annoying, if you are seeing challenge pages more often than you are on chrome, its likely that the site owner is actively is flagging your session to be challenged, they can undo this by adjusting their firewall rules.
If a site owner decides to enable challenge pages for every visitor, you should shift the blame on the site owners lack of interest in properly tunning their firewall.
There are actually hundreds of smaller chromium forks that add small features, such as built-in adblock and have no issues with neither Cloudflare nor other captchas.
Because in the end, the result is connection denial. I don't want to connect to Cloudflare, I want to connect to the website.
I read that part. They still do not indicate what may happen, or what is their responsibility -if any- for visitors with non-major browsers.
Not claiming this is "on purpose" or a conspiracy, but if these legitimate protests keep getting ignored then yes, it becomes discrimination. If they can't be bothered, they should clearly state that their tool is only compatible with X browsers. Who is to blame for "an incorrectly received challenge"? The website? The user who chooses a secure, but "wrong" browser not on their whitelist?
Cloudflare is there for security, not "major browser approval pass". They have the resources to increase response times, provide better support and deal with these incompatibility issues. But do they want to? Until now, they did.
The problem with this setup, is that it sacrifices on both security (because it needs to keep false positives at a minimum, even if that means allowing some known bots) and user experience (because situations like the one you have will occur from time to time). When you enable a challenge page on CF, it will work as-is and you have no ruling over it, the most you can do is skip the page for the browsers having false positives.
If CF gave site owners a clearer view of what they are blocking and let them choose which rules to enforce (within the challenge page), it would be much easier to simply say that the customer running CF doesn't want you visiting their page/doesn't care about few false positives.