According to previous posts in this forum, it should be possible to insert custom Javascript code into the or fields of the default theme, but whenever I try to do so, I get a popup saying “403 error”. Given that I am the admin but not a developer, how can I add my one line of custom Javascript?

Inserting Javascript yields 403 error

merefield (Robert) 2022 年 8 月 16 日午後 1:07 9

How about Head not Header?

「いいね！」 2