Test blocking reader mode because it is awful
This page exists only to test blocking reader mode.1
To force a page to load in reader mode, firefox users would enter
"about:reader?url=" before the address.
This script that I included here did not actually stop reader mode. It initially appeared to keep reader mode from activating. However, that was only because there was no text here. Since there was no text, Firefox didn't suggest the idea that it should use readermode.
So the situation might be that firefox just didn't offer the readermode icon because the page was so short that it determined the page wouldn't make sense for reader mode.
I did some testing on Seeking Alpha.
With Javascript turned on, reader mode doesn't show up by default (until after I've tried trying to force it).
When you try to force reader mode with javascript still on, you get a message that says "Failed to load article from page".
When I turn off javascript, the vast majority of articles just disappears. At that point, the reader mode suggestion also comes up. However, activating reader mode won't restore anything. I can't actually get the content from the article until javascript is enabled again.
Therefore, I believe SA is:
1. Using Javascript to load the article.
2. Using Javascript to detect reader mode and refuse to load the article.
3. Since reader mode isn't suggested, hardly anyone will attempt to use it.
4. Since the article doesn't load with Javascript off, there is an extremely strong incentive to turn trash like "No Script" off.
