HTML table scrapping in R

I'm trying to obtain the table on the following url: https://www.cenace.gob.mx/DocsMEM/OpeMdo/OfertaCompVent/OferVenta/MDA/Termicas/OfeVtaTermicaHor%20SIN%20MDA%20Hor%202018-12-31%20v2019%2003%2001_01%2000%2001.html

The problem is that the table is not an html table, so html_table() doesn´t work.

So far, I've tried extracting the node from table but it returns nothing

url = "https://www.cenace.gob.mx/DocsMEM/OpeMdo/OfertaCompVent/OferVenta/MDA/Termicas/OfeVtaTermicaHor%20BCS%20MDA%20Hor%202018-12-26%20v2019%2002%2024_01%2000%2001.html"
webpage <- read_html(url)
table_html <- html_nodes(webpage, 'table#Tabc')
table <- html_table(table_html)