Comments on: Base64 Encoded Images for Internet Explorer

by: John Sinclair

Sun, 25 May 2008 21:49:52 +0000

I have implemented a simple, home-brewed CAPTCHA function using PHP and a random image from a mySql database, stored there as a base-64 text strings. The data: URI scheme is easy to implement and works fine in IE 8, Safari, Firefox and Konqueror. All that remains is for me to write a browser detect for IE versions before 8. Then I can serve up the same text strings the old way.

There are more than a few ways base-64 text strings can be useful.

by: PSP Internet

Wed, 07 May 2008 18:50:24 +0000

Yeh ….I tried it and i had no luck

by: chiz

Mon, 10 Mar 2008 16:52:49 +0000

Good post. You make some great points that most people do not fully understand.

“MHTML (Mime/HTML) is essentially how HTML email does it. Microsoft supports the mTHM or mHTML format, but Mozilla is still working on it,

Data URL is probably the most elegent way. Apparently Netscape/Firefox and other browsers already support them. Except for IE, of course.”

I like how you explained that. Very helpful. Thanks.

by: purifier

Sun, 11 Feb 2007 06:17:10 +0000

yes, IE doesn’t work on that. i tried it myself.

by: gary

Fri, 22 Sep 2006 21:17:03 +0000

Don’t know why IE wouldn’t work. This was written more than a year ago. Haven’t check with IE7. But I am very happy with Firefox and there is little motivation to even download IE7.

by: Frank

Fri, 22 Sep 2006 17:44:11 +0000

I’ve written this into an ASP class using an ADO stream object and an MSXML2.DOMDocument object using bin.base64 datatype and it works very nicely in Firefox but fails entirely in IE. Am I missing something here? Is IE’s implementation as bad as … everything else it tries to do?

by: Phi Tran

Mon, 23 Jan 2006 04:35:53 +0000

I have posted a workaround to translate the base64 to XBM using mask and other MS filter to make the XBM become a color bitmap - The implementation is of your horizon. I have seen some very exortic color pictures only create and displayed using- XBM. This will not require a communication with the server.

Please look I have discuss it (at several localtionof the net)

Thanks.

by: gary

Fri, 17 Jun 2005 02:34:09 +0000

Got it to work on Wordpress/firefox. Need to disable WYSIWYG editor, because it automatically adds the site URL to before “data:”