Any way to directly add an Access-Control-Allow-Origin response header?

[quadratecode]

Is there any way to directly add an Access-Control-Allow-Origin response header? I tried to do it through pywebio.config() like so:

config(js_code=""" document.head.appendChild( "<META HTTP-EQUIV=\\"Access-Control-Allow-Origin\\" CONTENT=\\"www.example.org\\">") """)

However, this returns an error: "Failed to execute 'appendChild' on 'Node': parameter 1 is not of type 'Node'"

[wang0618]

Use jquery :
config(js_code=""" $('head').append( '<META HTTP-EQUIV="Access-Control-Allow-Origin" CONTENT="www.example.org">') """)