226: Invalid data URI

You used an URI with the data scheme, but the URI’s format is invalid.

Solution

Make sure your URI fulfills the requirements of a data URI. In particular, a data URI

• begins with data:
• optionally followed by a media type like text/css or image/png
• followed by a base64 indicator ;base64 if the data is base64-encoded
• followed by a mandatory comma ,
• followed by either base64-encoded or URL-encoded data.

Here is an example where a short data URI only contains a single word carrot. Mind the mandatory comma before the word:

[t]->data:,carrot

The word carrot does not contain any characters that need to be escaped in URL-encoding, so it appears unaltered. Data URIs are defined in RFC 2397.