This was previously removed without needing to. Adding it back to force
users to not emulate the page for previous versions of IE. The
imagetoolbar http-equiv tag was not restored as IE does not contain that
anymore since IE7. Also, the chome=1 has been removed from the
X-UA-Compatible content as ChromeFrame does not receive any further
updates since 2014 and is potentially broken.
PHPBB3-14136
* 'develop' of github.com:phpbb/phpbb3: (44 commits)
[ticket/10374] Remove 'custom template' cache prefix.
[feature/remove-db-styles] Remove forgotten template variables.
[feature/remove-db-styles] Removed style.php!
[feature/remove-db-styles] Rework filesystem permission checks from 6d24a71.
[feature/remove-db-styles] Update language to reflect removal of db storage.
[feature/remove-db-styles] Mark log entrys as deprecated.
[feature/remove-db-styles] Add error if template/theme file is unwritable.
[feature/remove-db-styles] Add schema changes sinces 3.0.x.
[feature/remove-db-styles] Readd table constant for upgrades etc.
[feature/remove-db-styles] Update database schemas.
[feature/remove-db-styles] Remove style.php DB storage.
[feature/remove-db-styles] Remove parse_css_file option from themes.
[feature/remove-db-styles] Remove DB theme handling code from session.
[feature/remove-db-styles] ACP has forgotten how to store themes in the DB.
[feature/remove-db-styles] Missed a few template DB bits in acp_styles.
[feature/remove-db-styles] Removing unused methods from acp_style.
[feature/remove-db-styles] Removed database storage of style components.
[ticket/10371] Removing last mentions of imageset
[ticket/10370] Add function documentation for get_stacktrace().
[ticket/10370] Explain that we are not the ones hiding backtrace pieces.
...
* github-igorw/ticket/10258:
[ticket/10258] Remove the meta charset tag
[ticket/10258] Adjust some deprecated tags for HTML5 in coding-guidelines
[ticket/10258] Remove copyright meta tag from docs
[ticket/10258] Remove resource-type and distribution meta tags
[ticket/10258] Remove X-UA-Compatible and imagetoolbar meta tags
[ticket/10258] Change the DOCTYPE to HTML5
The styleswitcher is an odd invention that allows setting the font size
of the page dynamically via JavaScript (and CSS). This should be done by
browser settings instead.
PHPBB3-10260
The charset tag is useless, because if a charset content-type header is
present it takes precedence. And phpBB always sends such a header.
PHPBB3-10258
* develop-olympus:
[ticket/9859] Remove the years from the copyright statements in docs files.
[ticket/9859] Remove the year from the copyright meta tag in docs/*.html
[ticket/9859] Remove the meta copyright tag as well.
[ticket/9859] Remove the credit line comment from all html files.
[ticket/9859] Remove years in credit line from some more files.
Closing tags converted using Oleg's script.
remove-php-end-tags.py -a .
Trailing newlines added using the following where $ext is file extension.
find . -type f -name "*.$ext" -print | xargs printf "e %s\nw\n" | ed -s;
Extensions: php, css, html, js, xml.
PHPBB3-9556
