Chrome 79 breaks hovering in Chrome DevTools

Google is constantly updating Chrome to make it better and better, but mixed in with all those updates, there are usually a lot of bugs. One of the newest bugs in Chrome 79 breaks hovering over variables in DevTools—an essential feature many developers depend on.

Chrome 79 breaks hovering

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Chrome 79 breaks hovering over variables

PiunikaWeb spotted the bug in Chrome 79 that breaks hovering over variables in the DevTools. It’s described in full for web developers here. There’s also a thread on the Google Chrome forums describing the issue here.

Basically, developers try to hover over a variable in JS Debugger, but the values no longer appear. This hovering feature did work in version 78, but it is broken in version 79. This makes the debugging process much more difficult.

One person responded to say they’re having the same problem with values not displaying when they hover over a variable. The person also said the “Display variable values inline while debugging” feature is not working anymore either. Between these two problems, the debugger’s usability is significantly impacted. Several other developers chimed in to say that the hovering feature is extremely useful, so Google should add it back into Chrome.

Here’s what’s happening

In the Chromium bug report, several steps are given as reproducing the issue. They involve writing an HTML file using an external JavaScript file and then opening that file in the browser. Then the user opened DevTools and went to the Sources tab, where they opened the external JavaScript file. Instead of highlighting in the syntax, all the text is black. When the user set a breakpoint and then hovered over a variable with the cursor, a value is supposed to be display. However, it does not, which is what is causing serious problems for developers who are working on debugging sites.

It sounds like this bug has been reported multiple times as other bug reports mention the same sort of thing. Thus, it seems likely that Google will fix the issue with Chrome 79 breaking while hovering over variables. The only question now is how long that will take.

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Michelle Jones
Michelle Jones was a television news producer for eight years. She produced the morning news programs for the NBC affiliates in Evansville, Indiana and Huntsville, Alabama and spent a short time at the CBS affiliate in Huntsville. She has experience as a writer and public relations expert for a wide variety of businesses. Michelle has been with ValueWalk since 2012 and is now our editor-in-chief. Email her at Mjones@valuewalk.com.