[ ] Regression (a behavior that used to work and stopped working in a new release)
[ x ] Bug report <!-- Please search GitHub for a similar issue or PR before submitting -->
[ ] Feature request
[ ] Documentation issue or request
[ ] Other: <!-- Please describe: -->
The web browser shows something when I just run the extension and connect to a port No. but when I make changes to my html files the error message ("Live Reload is not possible without body or head tag") pops up and the web browser shows nothing (blank). I have to close the server and reconnect it every time for web browser to show the new web contents. When I added an extra <html> or </html> the Live Server works fine for some reason.
I installed Live Server 8 months ago and it worked fine until recently when I tried to use it again after 4 months of inactivity and updated to the new version of it. I tried to open my old html documents that used to work fine with Live Server and don't work fine with it now. I thought I might have changed my codes and copied some codes from https://www.w3schools.com/html/default.asp but the Live Server behaved the same way.
The codes I copied from the link and with issue
```html
This is a paragraph.
The codes that work fine with extra ```<html> ``` or ``` </html> ```
```html
<!DOCTYPE html>
<html>
<html> <!-- extra -->
<head>
<title>Page Title</title>
</head>
<body>
<h1>My First Heading</h1>
<p>My first paragraph.</p>
</body>
</html>
```html
My first paragraph.