Why Does JS Code Fail on Android Chrome? Exposed: One-Click Solution!

You thought the website was fine and the JS code was as stable as an old dog, but as soon as you changed the mobile browser version, the page "went on strike"?

The most outrageous thing is: the computer is running normally,AndroidBut the phone completely ignores you.

This is no joke, it's a browser issue that's been happening quietly.

The root of the problem: It’s not that you wrote it wrong, but that the times have abandoned you

In fact, when most developers see this phenomenon, their first reaction is: Is there a bug in the JS syntax? Is the DOM not loaded? Or is the permission blocked?

The result? None of them. The real culprit turned out to be that ancient writing:

<script language="javascript">

This line of code was popular 20 years agounlimited, which can be seen in all tutorials.

But in Chromium version 119After that, Google said goodbye to this "antique grammar": as long as you see language Attributes, the browser will selectively ignore them and not even bother to explain them.

For compatibility reasons, Chrome on desktop is still "taking care of it temporarily"; but Chrome on mobile Android is the "vanguard" and immediately enabled this cleaning strategy.

So it appeared:Computer is working fine, but mobile phone is not workingThe problem.

Why did Android take action first?

Some people may ask: Why is Android Chrome launched first?

It's very simple, because the upgrade pace of the mobile terminal is faster, and Google pushes information as fast as sending red envelopes.

On 2023 January 10, Chrome 119 Android version has been fully pushed through Google Play.

Although the desktop version also uses the Chromium kernel, it is customary to "keep a hand" to avoid suddenly blowing up a large number of internal corporate systems.

So, if you are still using the phrase "language=javascript", on Android phones it is equivalent to writing a transparent code, which the browser ignores directly.

Solution: Get it done in three seconds

Fortunately, the fix for this problem is incredibly simple. Just replace this line:

<script>

Or a little more formally:

<script type="text/javascript">

It only takes a few seconds to modify it, and Android Chrome will immediately execute it.

Remember, after the modificationForce refresh cacheOtherwise, the browser may still be reading the old file. The method is also simple:

• Computer: Ctrl + F5
• Phone: Settings → Privacy → Clear Cache

Once refreshed, the code is revived in seconds and the page starts running again.

This is actually a "liquidation"

In the final analysis, the problem this time is not the problem of JS itself, butThe era of front-end legacy code.

What browser manufacturers need to do is very clear: gradually clean up the outdated syntax and force developers to update.

It's like a highway: tricycles and tractors were allowed to run side by side before, but now for safety reasons they have to be driven out. language="javascript" That tractor should not have been on the fast lane.

What should developers pay attention to?

This incident serves as a very realistic reminder to us:

1. Coding standards are really important The code that you think "just works" may stop working in a certain version.

2. The test environment must keep up with the pace Don’t just click and publish in Chrome on your computer. You have to check it on mobile devices and different versions of browsers.

3. Follow browser update logs Every time Chromium is upgraded, there are a lot of "Deprecation and Removal". These are not decorations, but will really kill your business.

Conclusion: Behind a line of code is technological evolution

Many people complain that Google is "unethical," but from a higher perspective, this is actually an inevitable process that drives the entire Web ecosystem forward.

Eliminating old attributes and forcing developers to follow standards is the iteration of technological civilization.

If we continue to be compatible with all outdated syntax, the front end will sooner or later become a pot of dilapidated hodgepodge.

Therefore, when we repair this small pit, we are actually participating in a "cleaning movement of technological civilization."

In the next few years, there will be more and more similar pitfalls, and the only antidote isKeep pace with the times and embrace standards.

Final summary

• Computers can run it, but Android can't, because <script language="javascript"> Deprecated.
• 从 Chromium 119 Android Chrome takes the lead in skipping language attribute <script> piece.
• The solution is: use <script> Or <script type="text/javascript">.
• After modification, refresh the cache and the problem will be restored.
• Developers should always pay attention to browser updates and develop the habit of writing code in a standardized manner.

So, next time you encounter a strange bug where the computer works fine but the phone doesn’t work, you might as well think about this: Is there a “relic from the last century” hidden in your code?