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Possible to get huge amounts of non-existent lines of spaces on certain webpages
Steps to reproduce:
- Turn on indent reporting in NVDA
- Go to the following website: https://banana-cream-pi.github.io/about.html. Note: I've seen this in other places, but this is just the most recent one.
- Hold up arrow.
- After doing that for a few seconds, press down arrow again.
Actual behavior:
A ton of blank spaces are reported that don't actually exist. Pressing down arrow returns you to the actual page content.
Expected behavior:
I'm not sure what HTML magic is happening in these cases, but NVDA should handle them gracefully, like it does with all other websites.
System configuration
NVDA installed/portable/running from source:
Installed
NVDA version:
2021.3.1
Windows version:
Windows 10 21H1 (x64) build 19043.15264
Name and version of other software in use when reproducing the issue:
The Brave web browser.
Other information about your system:
N/a
Other questions
Does the issue still occur after restarting your computer?
Yes
Have you tried any other versions of NVDA? If so, please report their behaviors.
I've seen this on a few older versions, but I can't recall them off the top of my head.
If NVDA add-ons are disabled, is your problem still occurring?
Yes
Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?
Yes
This page has the word "ABOUT" written using ASCII text on ten lines using 8's and full stops and gravs `. The line above and the line below this word seem to extend the same width, but made entirely of spaces. So effectively there is a whole bunch of screen reader irrelevant text, not just the spaces.
(Edit: Rewrote the next line as writing the tag itself formatted my text in that manner... which wasn't what I was aiming for!)
The text is formatted as (less than) PRE (greater than) (Preformatted) which specifically preserves spaces.
I don't have an answer offhand for why up arrow in this instance is only moving back one space though.
I saw a discussion on Twitter, where I think it was @jcsteh said it was an issue with something relating to virtual buffers. Not sure though
Yeah, this happens if there are more than 100 (or browse mode max chars per line) spaces on a line. There's probably another issue open for this already, but I'm not sure. It's probably a bug somewhere around here.
