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On Reddit, it's just altering the DOM in your browser. If you reload the page, what you collapsed is no longer collapsed. On HN, it's making a request to the s
by dangrossman 10y ago
On Reddit, it's just altering the DOM in your browser. If you reload the page, what you collapsed is no longer collapsed.
On HN, it's making a request to the server, which will remember that you collapsed that thread and keep it collapsed if you return to the page in the future.
- tabeth 10y agoThis is the answer. However, it raises an interesting question: are users using collapses to hide threads permanently, or to read the N-level comments first, then proceeding deeper as necessary?