At first I thought it was my clipboard. Then I thought it was my browser. Now I know there's something going on in the SEDE editor...

Hi, I'm Sam, and I sometimes string together long comma separated lists of user IDs and plug them into our data explorer to identify user engagement patterns and try to figure out how we can tweak features to make SE more awesome than it already is.

But I've noticed that I can't paste more than about 2300 7-digit IDs (and commas) into SEDE at once. I can however link sequences of 2300 IDs into SEDE, so we're not looking at a hard character count limit here. This seems to be an issue with pasting.

I'm told there are certain members of the community who maintain SEDE. Maybe you're out there listening? Any chance we can up the character paste count?

  • Pinged the "members of the community who maintain SEDE" :D Nov 4, 2014 at 21:04
  • Maybe you should stop pasting in so many comma-separated items? ;)
    – Taryn
    Nov 4, 2014 at 21:12
  • I wonder if you disable JavaScript does it work? Nov 4, 2014 at 21:12
  • @ShadowWizard that seems to introduce a whole new set of problems =/ Nov 4, 2014 at 21:18
  • @SamtheBrand You just like breaking stuff, just admit it.
    – Taryn
    Nov 4, 2014 at 21:23
  • 1
    Pasting into the editor or as a value to a query parameter?
    – Tim Stone
    Nov 4, 2014 at 21:23
  • Of course, just want to help Tim debug this (e.g. JS issue or not) Nov 4, 2014 at 21:23
  • @TimStone pasting into the editor Nov 4, 2014 at 21:24
  • Ah, there we go. Reproed, looking now.
    – Tim Stone
    Nov 4, 2014 at 21:45

1 Answer 1


Okay, from what I gathered there's some underlying issue in WebKit/Blink where the paste gets truncated en route to the rendered CodeMirror display due to wrapping in the hidden textarea.

It seems at some point CodeMirror changed something to work around this, so upgrading to the latest version appears to fix things, at least for the ~80,000 some character string I tested with. A toast on my desktop as I'm writing this has informed me SuperDalgas has already pulled the change, so fixed just pending a redeploy now.

  • Will check tomorrow. Thanks so much for looking into this Tim. Nov 4, 2014 at 23:12
  • Don't thank me too much, I still have to update the authentication process to use OAuth before Google drops the OpenID endpoint. :P
    – Tim Stone
    Nov 5, 2014 at 3:03
  • Ok, no thanks quite yet! But lemme know when I can. Nov 5, 2014 at 19:16
  • Hey, it works! Amazing. Big thanks. Nov 7, 2014 at 20:49

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