You made me a technician
Since a few month, on my laptop, while it has never impede me to follow my lesson, some characters appear in their octal value on the page.Beside they are a bit longer to load than they were.
\e038 instead of the loudspeaker button used to show the Pronunciations examples.
\f0 instead of the arrow which points to the label "Pronunciation examples".
Complete urls instead of the label.
It doesn't happen on my Ipad where all is perfect.
The Delavigne webmaster may have changed of server ?
And this long term reflexion :
With 634 lessons the PDF which assembles all the episodes takes a few minutes to be build but what will happen in the future when I'll have more than 3000 lessons ?
Will you implement a compress algorithm (Put in a zip archive) before releasing the file ?.