Do I have to activate something to allow Org-mode 9 to process macros? An org-file with the following content gives me an error on export:
#+MACRO CANVAS @@html:<div align=center><canvas id="$1"></canvas></div>@@
{{{CANVAS(thename)}}}
Would somebody be able to point me in the right direction?!
Error message:
cond: Undefined Org macro: canvas; aborting
#+MACRO:
?