Why Chrome 100 and Firefox 100 Could Break Your Favorite Websites

Google Chrome 100 is only some updates away, and already there are fears that it might trigger sure web sites to interrupt. Fortunately, Google is already investigating this and dealing in the direction of discovering a repair.

Like all software program, every new Chrome replace makes an attempt to repair bugs in earlier variations. Now nearing its a hundredth iteration, Google has confirmed that Chrome 100 might, in actual fact, trigger some websites, for example, these constructed with Duda, to utterly malfunction. And it is not simply Google both, Firefox may very well be affected too.

It is because such websites use the identical Consumer-Agent string to detect what browser, browser model, and working system you are utilizing.


It is a Consumer-Agent String Factor

If you happen to head over to WhatIsMyBrowser.com to examine your Consumer-Agent string, you may get one thing just like the picture under.


My User Agent string

Discover that on this instance, the Chrome model is written as Chrome/96.0.4664.110.

Nevertheless, most net devs accept the primary two digits (main model) solely, e.g. Chrome 96, which can be the case with Duda. Drawing from this illustration, Chrome/99 turns into 99, and Chrome/100 will default to 10. Y2K-bug, anybody?

There’s one other downside additionally. Duda robotically blocks any model of Chrome under model 40. Since Duda websites will learn Chrome/100 as 10, it will be robotically blocked.

Google has additionally recognized a number of different websites vulnerable to breaking because of Chrome 100.

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What Google Is Doing About This

Google is taking sure steps to repair Chrome 100 compatibility points. Firstly, it’s introducing a brand new Chrome flag that locks the Chrome main model within the Consumer-Agent string to 99 and forces the most important model quantity to the minor model place.


UA string Chrome flag

Under is an illustration displaying how UA strings for Duda websites will seem for Chrome 100 with and with out the brand new flag.


Old vs New Duda User Agent string for Chrome 100

After discovering that every one websites constructed with UK-based Yell Enterprise have been additionally not Chrome 100 suitable, Google started to achieve out to particular person net builders concerning the upcoming glitch.

Thus far, this outreach technique has labored for Yell Enterprise because it has been capable of make its total community Chrome 100 compliant.

Nevertheless, it stays to be seen if Google can attain each single developer individually and on time earlier than Chrome 100 rolls out on March 29, 2022.

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Firefox Could Be Affected Too

Firefox can be nearing its a hundredth replace, and identical to Chrome, it is also anticipated to trigger some websites to interrupt. Firefox 100 will first be launched to the experimental Firefox Nightly, then to beta, and at last to the secure channel come Could 3, 2022.

Apparently, the transition from two-digit to three-digit Consumer-Agent String can be responsible within the case of Firefox 100. Since August 2021, each Chrome and Firefox have been test-running model 100 with a number of documented cases of website breakage.


What Firefox is Doing About This

Mozilla’s net compatibility group is saddled with the accountability of fixing any and all Firefox 100 compatibility points.

To do that, it will use Mozilla’s website intervention mechanism to shortly repair any web site breakage because of Firefox 100. This may be achieved by overriding the Consumer-Agent String for the location and sending it as model 99 as an alternative.

You possibly can hold tabs on the method by typing about:compat into the Firefox handle bar. For widespread website breakage, nonetheless, Mozilla will freeze the most important model quantity at 99 whereas exploring different fixes.

What You Can Do

Begin taking steps to forestall your web site from breaking, come Chrome or Firefox 100. This will embody familiarizing your self with the brand new Chrome flag. Merely seek for and allow the ForceMajorInMinorPositionInUserAgent flag.


It’s also possible to encourage your followers, subscribers, or clients to attempt different Chrome or Firefox alternate options within the occasion that your website breaks when Chrome 100 is launched.


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