Encoding '#' in SVG in data URL in CSS

 I had to change a '#' to '%23' in an SVG in a 'data' URL of a 'background-image' property in CSS.


I had to do this when changing RGB colors to hexadecimal when 'minimising' my page using a bit of Perl:


    s/rgb\(\s*(\d+),\s*(\d+),\s*(\d+)\)/sprintf("%s23%02x%02x%02x","%",$1,$2,$3)/eg;


(My old version of Perl does not allow '%%' in the 'sprintf' in the substitution)


All the other 'special' characters are encoded in the SVG in the 'data' URL. 


The 'background-image' property looks like:


    url("data:image/svg+xml;charset=utf8,%3Csvg%20viewBox%3D%220%200%20168%...


There are online tools to do the encoding.


A PNG image would need full 'base64' encoding to go in a 'url' but an SVG does not.


There are more tips at: bbingo.xyz/techtips/




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