Hey all…
I updated from 5.2.3 to 5.2.5 and had trouble saving a basic ‘page’ with a few custom fields, nothing with much data. I rolled back to 5.2.3 and all is well again.
Had the same JS error reported in the title (preventing the save).
Just chiming in here that I’m not 100% that this snag has been remedied. Please let me know if I can help any!
Thx…Ross