问题
There are quite a few questions here on SO about the following meta tag not being HTML5 compliant and therefore will not validate when using <!DOCTYPE html>:
<meta http-equiv="imagetoolbar" content="no">
I also know this tag is specifically for one purpose alone: hiding the toolbar that appears when you hover your mouse over any image in Internet Explorer.
However, I could not find out in exactly which versions of Explorer this is applicable. When I Googled it, most results only mention IE6, but these threads/pages were posted back in 2004. I'm wondering if that's because the feature was dropped in IE7+.
I do not care about IE6, but if this meta tag is applicable to IE7, IE8, IE9, etc. I'll need to decide if I want to find an alternative method.
Exactly which versions of Internet Explorer enable the annoying Image Toolbar feature that is disabled via the meta tag above?
回答1:
Apparently, the Image Toolbar was only a feature in IE6. It was replaced with the contextual menu (right-click) in subsequent versions.
IE6 is dead so I won't be concerned about not using this meta tag any longer.
来源：https://stackoverflow.com/questions/7207649/imagetoolbar-meta-tag-and-ie-versions