fix: remove X-Content-Security-Policy header (#492)

Per https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP : > (Sometimes you may see mentions of the `X-Content-Security-Policy` header, but that's an older version and you don't need to specify it anymore.)
4 years ago · 1ad18486ed
1 changed files with 0 additions and 1 deletions
--- a/index.html
+++ b/index.html
@ -4,7 +4,6 @@
    <meta charset="UTF-8">
    <!-- https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP -->
    <meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self'">
-    <meta http-equiv="X-Content-Security-Policy" content="default-src 'self'; script-src 'self'">
    <title>Hello World!</title>
  </head>
  <body>