I can't help with the first part of your query I'm afraid. If you Google the problem there is mention of starting Chrome from the command line with security disabled: http://babbeg.com/2012/02/06/disable...n-with-chrome/ - maybe that will help?
In terms of having the same content on multiple pages, it will depend on your web server. If it supports ASP then you can #INCLUDE the same file on multiple pages: http://www.w3schools.com/asp/asp_incfiles.asp
PHP supports this too: http://www.w3schools.com/PHP/php_includes.asp (in fact this example is exactly for having the same menu on multiple pages).