Placeholders inside hrefs are encoded

[pduersteler]

As many times references in alexdunae/premailer, I am also bringing this up here.

Having a link with special chars in it does convert/encode it to a html-safe one. However, this feature is a bit too eager because it e.g. also converts ampersands to its according html entity.

It also breaks templating functionality when e.g. using it with mustache. <a href="{{some_url}}"> gets converted to <a href="%7B%7Bsome_url%7B%7B">.

I'd suggest that this either becomes less paranoid, or can be turned off by supplying an option.

[akzhan]

Will be reviewed later (now I'm on leave). But pull requests very apprepriated.

[markedmondson]

We hit this too, currently we clean up the code through a regex on a Rails callback but a nicer solution would be preferred.

html = html.gsub(/(%7B%7B|{{)+(\s|%20)?/i, '{{ ')
html = html.gsub(/(\s|%20)?(%7D%7D|}})+/i, ' }}')

Seemingly URI.unescape works just as well!