Seen above:

1. There is an alternative coloring technique where Minecraft sends a color code in the format of §[0-9a-f]. Most notably the + symbols should be green in the web chat.
2. Sometimes repeated spaces are meaningful and are used for formatting.

Proposed solutions:

1. Provide a separate formatting pass over text to scan for color formatting codes.
2. A simple global find+replace on all text:

• Find all occurrences of more than one consecutive space
• Replace with an equal amount of   (non-breaking space XML entities)