1 <p> 2 MHTML is a <a href="http://tools.ietf.org/html/rfc2557">standard format</a> 3 supported by most browsers. It encapsulates in a single file a page and all 4 its resources (CSS files, images..). 5 </p> 6 7 <p> 8 Note that for security reasons a MHTML file can only be loaded from the file 9 system and that it can only be loaded in the main frame. 10 </p> 11 12 <h2 id="manifest">Manifest</h2> 13 14 15 <p>You must declare the "pageCapture" permission 16 in the <a href="manifest.html">extension manifest</a> 17 to use the pageCapture API. 18 For example:</p> 19 <pre>{ 20 "name": "My extension", 21 ... 22 <b>"permissions": [ 23 "pageCapture" 24 ]</b>, 25 ... 26 }</pre> 27