Incorrect HTML displayed when viewing email from Disqus commenting system

[thydzik]

Emails received from Disqus (disqus.com), notifying me I have a new comment on my blog do not appear correctly, here is the examples;

Example 1;
This is a screenshot of the correctly displayed HTML, I have display HTML off and have clicked the HTML link present in the text only email;
​http://thydzik.com/example1.png

Example 2;
This is a screenshot of the same settings, with the text only version; you can see the HTML link;
​http://thydzik.com/example2.png

Example 3;
This is with the show HTML setting enabled; You can see there is different formatting, the users comment is missing. What is interesting, if I save the page as html, and reopen it, I can see the comment.
​http://thydzik.com/example3.png

I have tested the following same email is other clients including Horde, SquirrelMail? and Gmail and it worked as expected. In both a self hosted and hosting-company hosted RoundCube the above was experienced.

I also noticed a Invalid ticked was created experiencing similar things, and there was no resolution;
​http://trac.roundcube.net/ticket/1488016

Let me know if I can provide any further information, I am including screenshots and HTML pages saves.

[thydzik]

Example 1 screenshot

[thydzik]

Example 2 screenshot

[thydzik]

Example 3 screenshot

[thydzik]

Examples saved htm

[alec]

Provide the message source, please.

[thydzik]

example eml file

[thydzik]

Replying to alec:

Provide the message source, please.

I have uploaded the eml file of the message, also made it available here
​http://thydzik.com/example.eml

[alec]

After a short investigation I can say it's css conflict. When you open HTML attachment, none of Roundcube styles are loaded, but when you open it in message preview content.css and mail.css are loaded. The HTML from Disqus use the same IDs as Roundcube does, e.g. "message".

[thydzik]

thanks for that, is this something that will be resolved in a future Roundcube release?

[alec]

I don't know. There are a few possible solutions for this. 1. Always use iframe for message body (not good for performance). 2. Add rc_ prefix to all Roundcube IDs and classes. 3. Remove IDs and class names from the message body (and replace with style attributes). Both 2. and 3. doesn't look simple to implement.

[alec]

Fixed default skin in [6205a30c]. There was no issue in Larry skin. Backported to 0.7 in r5961/svn.