<story><title>You Don&apos;t Know GIF – An analysis of a GIF file and some weird GIF features</title><url>https://blog.darrien.dev/posts/you-dont-know-gif</url></story><parent_chain><item><author>Hitton</author><text>&amp;gt;Now the first line ends like this which is still a perfectly valid gif. How might that look?&lt;p&gt;&amp;gt;Amazing! Stupendous! Wonderful! As of the time of this writing, it’s just a perfectly black square. And this is the case in every single renderer I’ve tried. Gimp, Chrome, Firefox, Preview, gifiddle, you name it.&lt;p&gt;Funnily enough in my browser (Firefox on Ubuntu) it&amp;#x27;s transparent, but it&amp;#x27;s level of transparency I have never seen before - I can see the window below.</text></item></parent_chain><comment><author>OscarCunningham</author><text>I&amp;#x27;ve reported this as a bug here: &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;bugzilla.mozilla.org&amp;#x2F;show_bug.cgi?id=1758975&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;bugzilla.mozilla.org&amp;#x2F;show_bug.cgi?id=1758975&lt;/a&gt;</text></comment>
<story><title>You Don&apos;t Know GIF – An analysis of a GIF file and some weird GIF features</title><url>https://blog.darrien.dev/posts/you-dont-know-gif</url></story><parent_chain><item><author>Hitton</author><text>&amp;gt;Now the first line ends like this which is still a perfectly valid gif. How might that look?&lt;p&gt;&amp;gt;Amazing! Stupendous! Wonderful! As of the time of this writing, it’s just a perfectly black square. And this is the case in every single renderer I’ve tried. Gimp, Chrome, Firefox, Preview, gifiddle, you name it.&lt;p&gt;Funnily enough in my browser (Firefox on Ubuntu) it&amp;#x27;s transparent, but it&amp;#x27;s level of transparency I have never seen before - I can see the window below.</text></item></parent_chain><comment><author>earthbee</author><text>Same for me, I can see my wallpaper and desktop icons.  Very strange.  Wonder if this is a risk for being exploited somehow to take photos of people&amp;#x27;s desktops</text></comment>