To turn this frustration into something concrete, I have a suggestion:

Could we have a "Make Spoilers Visible" button or checkbox?

It would be per tag, so I could elect to show spoilers for things I've seen and keep them hidden (the default) for things I haven't seen. This would improve the readability of questions and answers with a plethora of spoilers, such as the one linked above.

  • 2
    Similar request from before: meta.stackexchange.com/questions/91682/… Jan 5, 2016 at 21:08
  • 8
    It's all fun and games until you have the-force-awakens set to hide all, and star-wars to show all, and the entire universe implodes.
    – phantom42
    Jan 5, 2016 at 22:50
  • 6
    @phantom42 don't cross the tags!
    – AncientSwordRage Mod
    Jan 5, 2016 at 22:53
  • 4
    In all seriousness, while this is a nice idea, it still relies one users properly tagging and spoilering content. If you're super concerned with spoilers about something, you'll still need to be mindful of things.
    – phantom42
    Jan 5, 2016 at 23:12
  • 1
    @phantom42, logically, you wouldn't see the spoilers for a question unless you'd checked "Show spoilers" for all the tags in that question.
    – Kyralessa
    Jan 6, 2016 at 0:08

2 Answers 2


I created a UserScript which does just this – you specify a list of tags, and it will unhide spoilers on any question that uses those tags.

I developed and tested it with TamperMonkey in Chrome 47 on OS X, although I see no reason why it shouldn’t work in other browsers – this is just vanilla JavaScript.

Here’s the code for the script:

// ==UserScript==
// @name         SFF.SE Show spoilers on questions with particular tags
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Show all spoilers on SFF.SE questions with specified tags
// @author       alexwlchan
// @match         *://scifi.stackexchange.com/questions/*
// @match         *://meta.scifi.stackexchange.com/questions/*
// @grant        none
// ==/UserScript==
/* jshint -W097 */
'use strict';

// If every tag on a question is in this array, then the spoilers on this
// question will be shown.
// (Tags tweaked so you don't get inadvertently
// spoiled while testing this script.)

// Returns an array of tags on a question
var getTagsOnQuestion = function() {
    var taglist = document.getElementsByClassName("post-taglist")[0];
    var hrefs = taglist.getElementsByClassName("post-tag");

    var tags = [];
    for (var ii = 0; ii < hrefs.length; ii++) {
    return tags;

// Returns true/false depending on whether the spoilers on this question
// should be shown -- that is, whether every tag on the question is in
var shouldShowSpoilersOnQuestion = function() {

    // Get the tags on a question.  All questions have at least one tag.
    var tags = getTagsOnQuestion();

    for (var jj = 0; jj < tags.length; jj++) {
        // If we don't find the tag in the array of spoiler-able tags,
        // then we have to reject the question.
        if (SHOW_ME_SPOILERS_IF_TAGGED.indexOf(tags[jj]) == -1) {
            return false;
    return true;

// Modify all the spoilers on the page to show their spoiler text
var showSpoilers = function() {
    var spoilers = document.getElementsByClassName("spoiler");
    for (var kk = 0; kk < spoilers.length; kk++) {
        spoilers[kk].transition = "none";
        spoilers[kk].style.color = "#222426";

if (shouldShowSpoilersOnQuestion()) {

You need to put a list of all the tags where you don’t want spoilers into the SHOW_ME_SPOILERS_IF_TAGGED array, and any question whose tags are a subset of that array will have the spoilers unhidden.


  • Rather than showing up immediately, the spoilers have the same 1-second fade-in when you hover over them; it just kicks in immediately. Would be nice if it snapped to position.
  • Only works on desktop browsers; I think the mobile spoiler layout is a bit different.
  • If you’d like to moan about my JavaScript (it’s something I’ve only dabbled in), please direct criticism to Code Review.

While not exactly what you're looking for, I took some time this afternoon to create a UserScript that will allow you to toggle spoilers on a per-question basis. It creates a checkbox in the question info block in the sidebar that will toggle spoilerification:

enter image description here

There's no caching involved, so you'll have to manually tick the box each time you visit the question.

Here's what it looks like on How could Leia sense a specific death among so many? (images are thumbnails, because the whole screen is rather long; click for the full image):

  • Before:

    enter image description here

  • After:

    enter image description here

The script was created and tested in TamperMonkey and Chrome 47 on Windows 10, but it should work on Firefox with Greasemonkey. Don't know what to do if you're using any other browsers.

You can find the code on GitHub, or (if you already have Greasemonkey or Tampermonkey installed) you can install the script with this handy link: Install

If you run into any problems with this script, leave a comment here or open an issue or pull request on GitHub.

  • 2
    @name SFF.SE Toggle all soilers on a question Maybe just send them to Cost-Co for some adult nappies?
    – John Bell
    Jan 20, 2016 at 11:47
  • 1
    @JohnBell Heh, whoopsie. Thanks for the catch Jan 21, 2016 at 2:29
  • Nice update. You should maybe put the update in bold or something at the top, to draw notice. I had to check the edit diff to clearly see what you changed.
    – user31178
    Nov 3, 2016 at 19:54
  • @CreationEdge Eh. I think it's better to just remove the code entirely. The full changelog is on GitHub if that's something people are really interested in Nov 4, 2016 at 2:34
  • I just meant something like Now works on all stacks., nothin fancy.
    – user31178
    Nov 4, 2016 at 2:35

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