The browser may throw an error when a big mail such as one with
hundreds thousands of tags is being transformed to have a style
more compatible with mail clients.
The error would be:
"Uncaught RangeError: Maximum call stack size exceeded"
This happens in jquery because we hare too many nodes (there is an
ongoing issue at https://github.com./jquery/sizzle/issues/403) so this
commit replace that part by a DFS traversal over DOM nodes.
There was also an issue that not having the option "style-inline" would
still cause some style code to be ran albeit it was intended not to be
solved in 55c7d2d5b0.
opw-1841107
closes#24550
Nicolas Lempereur
b739e65940