ShadowFox/no_empty_iframes

No Empty iframes

Test Page

Test page

What it does

No Empty iframes adds a blank div to any iframes that have an empty body.

That sounds useless...what's the point?

ShadowFox utilizes userContent.css and userChrome.css to create a universal dark theme for Firefox. In part, this means styling about:blank. A complication of this is that about:blank is also used for anonymous frames on webpages. Generally, iframes will contain content, making the following css rule specific enough:

html > body:empty {
	background-color: var(--in-content-page-background)!important;
	margin: 0!important
}

Some pages, however, have empty iframes that cause readability issues (see #222).

This extension injects an empty div into such iframes, allowing the rule above to work.

Better approaches?

If anyone has a better approach/workaround for this problem, I would appreciate any suggestions.