I try
on Btp Valore 13giu27 - Quotazioni in tempo reale | MilanoFinanza.it
and find the JSON-Request
https://www.milanofinanza.it/Grafici/GraficoStorico?stockCodeRT=56c3&codiceStrumento=1ac&nome=
The Response is a little bit tricky (bad structur)
[["Btp Val Gn27"],["1784592000000","100.9789"],["1784505600000","100.9883"],["1784246400000","101.006"],["1784160000000","101.0277"],["1784073600000","101.0319"],["1783987200000","101.0189"],["1783900800000","101.0782"],["1783641600000","101.097"],["1783555200000","101.09"],["1783468800000","101.1185"],["1783382400000","101.1873"],
..... and so on ....
["1687737600000","100.352"],["1687478400000","100.31"],["1687392000000","100.239"],["1687305600000","100.3224"],["1687219200000","100.244"],["1687132800000","100.2089"],["1686873600000","100.2267"],["1686787200000","100.0897"],["1686700800000","100.1953"],["1686614400000","100.0765"]]
because of the “Btp Val Gn27” in the first field, it is not possible to use the normal asterisk ($[*]).
URL: https://www.milanofinanza.it/Grafici/GraficoStorico?stockCodeRT=56c3&codiceStrumento=1ac&nome=
Path to date: $[1:][0]
Path to quote: $[1:][1]
If you want to try that stuff for another ISIN (Btp | Milano Finanza), use CTRL+Shift+i in Firefox and filter under networkanalysis for stockcode:

