Laravel 5.6 Tutorial: How to install Laravel 5.6 on Windows
У вашего броузера проблема в совместимости с HTML5
Step by Step
Step 1:. First Install Composer
i. Open the link https://getcomposer.org/download/
ii.Click on "Composer-Setup.exe" Download after install composer
Step 2. composer global require "laravel/installer"
Step 3. composer create-project --prefer-dist laravel/laravel blog
Server Requirements
PHP Greater than equal to 7.1.3
OpenSSL PHP Extension
PDO PHP Extension
Mbstring PHP Extension
Tokenizer PHP Extension
XML PHP Extension
Ctype PHP Extension
JSON PHP Extension