Chrome lighthouse report returns `Properly defines charset` issue in Best Practices section

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I have a VueJs SPA application. Everything is working fine. But when I run chrome lighthouse report, it returns Properly defines charset error. In fact I have added charset in my index.html file.

Here are screenshot of issue.

Chrome light house report

Chrome light house report

Chrome lighthouse issue in best practices

Chrome lighthouse issue in best practices

Code where I added charset UTF-8

Code where I added charset UTF-8

1 Answers

It was service worker issue. I was unintentionally double registering service worker. that`s why its creating problem.

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