Unfortunately, the site appears to be gone now. Loading the URL shows the text "File not found" with no other content.
Status: NEW → RESOLVED
Last Resolved: a year ago
Resolution: --- → INCOMPLETE
The issue appears to be reproducible on any site with downloadable fonts. Could you check STR_2? (please hide comment 2, it's incorrect. >>> My Info: Win7_64, Nightly 53, 32bit, ID 20170107030205 (2017-01-07) STR_2: 1. Open bug 1268736 , reload it using Ctrl+Shift+R 2. Inspect element "#bugzilla-body", find rule "margin: 10px auto 15px;" in ruleview, click on "10px" 3. Press Up key, wait 5 seconds 4. Press Down key, wait 5 seconds AR: After Step 3 and Step 4 text on the page blinks. Font file is requested multiple times. New requests appear in Netmonitor/console, and each of them says "cached" ER: Text shouldn't blink
I can reproduce the STR in comment 2 in Nightly 53.0a1 (2017-01-07) (64-bit) on Linux. The Network tab adds new requests for some FireSans woff fonts in step 3/4. They are listed as "Transferred: Cached". There is also a noticeable flash on the page that happens - it's more noticeable when the page is scrolled down a bit to begin with.
Severity: normal → minor
Status: RESOLVED → REOPENED
Component: Layout: Text → CSS Parsing and Computation
OS: Unspecified → All
Hardware: Unspecified → All
Resolution: INCOMPLETE → ---
The claimed regression range (in comment 0) is: > This is regression from bug 964613 (between 2014-04-17 and 2014-04-18). Regression range: > https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=e71ed4135461&tochange=7fe3ee0cf8be I haven't confirmed it, but it seems plausible.
It does seem odd that we'd trigger font requests when editing a CSS rule that contains no font properties. So that's why I figured the root cause might be in the style system. It might also be something that the devtools code does.
You need to log in before you can comment on or make changes to this bug.