[whatwg] Proposal for improved handling of '#' inside of data URIs

Nils Dagsson Moskopp nils at dieweltistgarnichtso.net
Sat Sep 10 18:04:50 PDT 2011

Boris Zbarsky <bzbarsky at MIT.EDU> schrieb am Sat, 10 Sep 2011 20:34:18

> On 9/10/11 7:53 PM, Nils Dagsson Moskopp wrote:  
> > Is fragment use in data URIs possible at all?  
> Possible, and desirable; otherwise SVG data: URIs are pretty much
> useless.  

Thanks, I had not thought of that.

> > The last point – interoperability – is satisfied by any widely
> > implemented outcome. The first point – author expectations – I
> > question. So, how often does this occur?  
> Having a '#' in the document being encoded in a data: URI?  Pretty
> much any time the document includes any CSS (colors) or SVG (paint
> servers and the like).  

Oops, partial misunderstanding. While I did not think of SVG (thanks),
I wanted to know how often authors have erred here by not properly
encoding their data, expecting it to work. It just seems weird to me;
the people I know who know about data URIs certainly know how percent
encoding works – often taking advantage of automatic tools for the

Btw: Are there possible security implications of data URI parse changes?

Nils Dagsson Moskopp // erlehmann

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