tl;dr: reader mode only shows the first section of mashable's "apple-watch-review" article. STR: 1. Visit http://mashable.com/2015/04/08/apple-watch-review/ 2. Click reader mode icon in URL bar 3. Note the final line of text that you can see, and compare that against the original article. ACTUAL RESULTS: The last line in reader-mode is "but both lack the design elegance and sheer comfort of it", which is only ~1/5 of the way through the article. (It's at the end of the first section on "DESIGN", right before the second section "SETUP") EXPECTED RESULTS: Full article text should be shown in Reader Mode.
Testing with Nightly, version 40.0a1 (2015-04-07) on 64-bit Ubuntu Linux