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AA

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Nov 22, 2025, 8:34:47 AM (3 days ago) Nov 22
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I've noticed for a long time it doesn't really work on Reddit you can highlight but not annotate. Is this an issue that can be fixed. If not no big deal.  Or inherent in the website. Or maybe it's a bug on my end.

Janrae Valencia

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Nov 24, 2025, 9:10:27 AM (yesterday) Nov 24
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Hi there​,

This is a known issue between Hypothesis and Reddit, originally reported in August 2023. Reddit applies a CSS rule that hides custom elements, including the Hypothesis sidebar, by setting their visibility to hidden. Because of this, the sidebar does not appear even after clicking Annotate or Highlight in the adder.

The highlight action still works, but the usual behavior of showing the sidebar after highlighting does not occur.

Best,
Janrae
Hypothesis Support
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Jason Burnett

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Nov 24, 2025, 12:19:15 PM (21 hours ago) Nov 24
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I just tried isolating the hypothesis sidebar in the source code (f12 on Windows) And by toggling one setting "visibility:hidden" I was able to get full access to the sidebar.

Then I downloaded A CSS Injector extensions and added these rules to the extension:
.sidebar-collapsed .sidebar-frame{
  /*visibility:hidden*/ }
:not(:defined):not( faceplate-auto-height-animator,faceplate-dropdown-menu,faceplate-expandable-section-helper,faceplate-hovercard,faceplate-tracker ) {
    visibility: visible!important;/
}
Now, whenever I activate Hypothesis on Reddit, the sidebar appears as expected. It's a simple hack that could be added to the Hypothesis CSS to make sure that it is visible. 
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