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Fix context menu and hover preview z-index - #5797
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@## main #5797 +/- ##
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mstange
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Jan 30, 2026
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Looks good, thanks!
Now that the profile viewer is no longer a stacking context, I hope we won't be running into things which accidentally interleave its contents. Generally I think I'd feel safer if we made more things z-order-atomic (rather than fewer things), but in this case it would mean we'd have to move the context menu somewhere outside in the DOM hierarchy first. So your solution is perfectly fine.
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canova added a commit
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Feb 4, 2026
Changes: [Nazım Can Altınova] Make the range duration text white again (#5792) [Alex Thayer] Display traced values in Stack Chart view (#5363) [Nazım Can Altınova] Improve the JS traced arguments visualization in call node tooltips (#5795) [Markus Stange] Make the argument-values.json profile fixture go through profile upgrading (#5796) [Markus Stange] Add thread.usedInnerWindowIDs to the processed profile format (#5780) [fatadel] Fix context menu and hover preview z-index (#5797) [fatadel] add TrackPower--tooltip-power-microwatt (#5799) [Markus Stange] Two small test fixes (#5801) [fatadel] fix selected thread pid color in light mode (#5805) [Markus Stange] Some fixes to the profile merging code (#5802) [fatadel] fix disabled button color in dark mode (#5808) [fatadel] add comment for uptime label translation (#5806) [Nazım Can Altınova] Add a theme toggle to the home page and follow the system theme by default (#5800) [Nazım Can Altınova] 🔃 Sync: l10n -> main (Feb 4, 2025) (#5813) And huge thanks to our localizers: de: Ger de: Michael Köhler de: Nazım Can Altınova el: Jim Spentzos en-GB: Ian Neal es-CL: ravmn fy-NL: Fjoerfoks ia: Melo46 it: Francesco Lodolo [:flod] nl: Mark Heijl pt-BR: Marcelo Ghelman ru: Valery Ledovskoy sv-SE: Andreas Pettersson tr: Selim Şumlu zh-TW: Pin-guang Chen
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Closes#5513.
Problem: the screenshot hover preview appears above the context menu.
Reason: profile viewer introduces stacking context making it impossible to place hover preview / context menu in relevance to each other on the z axis. It was there to make KeyboardShortcut overlay the profile viewer.
Fix: the stacking context is removed. KeyboardShortcut got its own z-index value.
Before
Profile
After
Profile
Side effect 1
As a side effect, this issue I reported yesterday is also fixed now (see the screenshot below).
Side effect 2
Another side effect is that I've decided to consolidate the z-index values throughout the whole project. Now they are all in one place making it way easier to reason about them and to see what should be higher/lower than what.