What's New In DevTools (Chrome 75)
Hello! Here's what's new in Chrome DevTools in Chrome 75.
Video version of this page #
Meaningful preset values when autocompleting CSS functions #
Some CSS properties, like
filter, take functions for values. For example,
filter: blur(1px) adds a 1-pixel blur to a node. When autocompleting properties like
filter, DevTools now populates the property with a meaningful value so that you can preview what kind of change the value will have on the node.
Figure 1. The old autocomplete behavior. DevTools is autocompleting to
filter: blur and no change is visible in the viewport.
Figure 2. The new autocomplete behavior. DevTools is autocompleting to
filter: blur(1px) and the change is visible in the viewport.
Relevant Chromium issue: #931145
Clear site data from the Command Menu #
Press Control+Shift+P or Command+Shift+P (Mac) to open the Command Menu and then run the Clear Site Data command to clear all data related to the page, including: Service workers,
sessionStorage, IndexedDB, Web SQL, Cookies, Cache, and Application Cache.
Figure 3. The Clear Site Data command.
Clearing site data has been available from Application > Clear Storage for a while. The new feature in Chrome 75 is being able to run the command from the Command Menu.
If you don't want to delete all site data, you can control what data gets deleted from Application > Clear Storage.
Figure 4. Application > Clear Storage.
Relevant Chromium issue: #942503
View all IndexedDB databases #
Previously Application > IndexedDB only allowed you to inspect IndexedDB databases from the main origin. For example, if you had an
<iframe> on your page, and that
<iframe> was using IndexedDB, you wouldn't be able to see its database(s). As of Chrome 75, DevTools shows IndexedDB databases for all origins.
Figure 5. The old behavior. The page is embedding a demo that uses IndexedDB, but no databases are visible.
Figure 6. The new behavior. The demo's databases are visible.
Relevant Chromium issue: #943770
View a resource's uncompressed size on hover #
Suppose that you're inspecting network activity. Your site uses text compression to reduce the transfer size of resources. You want to see how large the page's resources are after the browser uncompresses them. Previously this information was only available when using large request rows. Now you can access this information by hovering over the Size column.
Figure 7. Hovering over the Size column to view a resource's uncompressed size.
Relevant Chromium issue: #805429
Inline breakpoints in the breakpoint pane #
Suppose that you add a line-of-code breakpoint to the following line of code:
For a while now DevTools has enabled you to specify when exactly it should pause on a breakpoint like this: at the beginning of the line, before
document.querySelector('#dante') is called, or before
addEventListener('click', logWarning) is called. If you enable all 3, you're essentially creating 3 breakpoints. Previously the Breakpoints pane did not give you the ability to manage these 3 breakpoints individually. As of Chrome 75 each inline breakpoint gets its own entry in the Breakpoints pane.
Figure 8. The old behavior. There's only 1 entry in the Breakpoints pane.
Figure 9. The new behavior. There's 3 entries in the Breakpoints pane.
Relevant Chromium issue: #927961
IndexedDB and Cache resource counts #
The IndexedDB and Cache panes now indicate the total number of resources in a database or cache.
Figure 10. Total entries in an IndexedDB database.
Setting for disabling the detailed inspect tooltip #
Chrome 73 introduced detailed tooltips when in Inspect mode.
Figure 11. A detailed tooltip showing color, font, margin, and contrast.
You can now disable these detailed tooltips from Settings > Preferences > Elements > Show Detailed Inspect Tooltip.
Figure 12. A minimal tooltip showing only width and height.
Relevant Chromium issue: #948417
Setting for toggling tab indentation in the Sources panel editor #
Accessibility testing revealed that there was a tab trap in the Editor. Once a keyboard user tabbed into the Editor, they had no way to tab out of it because the Tab key was used for indentation. To override the default behavior and use Tab to move focus, enable Settings > Preferences > Sources > Enable Tab Moves Focus.
There's been a lot of work recently around making the DevTools UI itself more keyboard navigable. Check out Rob's Navigate Chrome DevTools With Assistive Technology to learn more.