News for hackers. Stuff that matters.
Re:Twitter says it's looking at subscription options as ad r... by whatch on Thursday July 23, 2020 @02:00PM (#23930203)
Is it browser's limitation?

I had issues, when tried to search in a very long <textarea> with scrollbar. Firefox was able to find only currently visible occurrences. That was not a viewport issue, of course, but looks very similar. Would love to know more about all this.

Re:Twitter says it's looking at subscription options as ad r... by progval on Thursday July 23, 2020 @04:27PM (#23931881)
No, it's because Twitter Web removes elements from the DOM when they are far from the viewport.

There are two ways you can see it:

1. Open a DOM debugger, select an element in a tweet, scroll down. Eventually the element disappears.

2. In Firefox, scroll down, right click, "Take a screenshot", "Complete page". You'll see tweet far from the viewport, as well as header and sidebars are invisible.

The motivation is probably to make it faster, but it's unclear to me why removing (and later re-adding) elements in Javascript would be more efficient than the browser internally dealing with it.