716ceede16
On IE (from 9.0 up to at least IE EDGE 14) we have this behavior
for the method serializeToString of XMLSerializer:
> (new XMLSerializer()).serializeToString($('<b>"</b>')[0])
'<b xmlns="http://www.w3.org/1999/xhtml">"</b>'
> (new XMLSerializer()).serializeToString($('<b>"</b>')[0].firstChild)
'"'
Whilst browser such as chromium or firefox have:
> (new XMLSerializer()).serializeToString($('<b>"</b>')[0])
'<b xmlns="http://www.w3.org/1999/xhtml">"</b>'
> (new XMLSerializer()).serializeToString($('<b>"</b>')[0].firstChild)
'"'
Hence for IE9 and over, if in a `<t t-extend/>` a `t-jquery`
sub-directive (without `t-operation`) is available, we can have
broken javascript if a " is transformed into an " at a unfortunate
location.
This commit favour node.data over XMLSerializer serializeToString to
avoid the possibility of this issue when a text node is processed.
opw-727283
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