the app  sets up  linebrakes `r and encloses some characters  {#} , {!} + {:}
If you intent to paste html code it's important that there is a doublequote before  the web protocol  "htt...    (it's the default syntax, so you must not care about if you are using code snippets from web services)

example

# ─────██████████════█

thanks for ADDing
▒▒▒▒▒▒▒▒▒██▒▒▒▒███▒▒▒▒██
▒▒▒▒▒▒▒▒█▓▓█▒██▓▓▓██▒█▓▓█
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▒▒▒▒▒▒▒█▓▒▒▓ █▄ █▄█ ▀▄▀▓▒▒▓█
▒▒▒▒▒▒▒▒█▓▒▒▓▓▓▓▓▓▓▓▓▒▒▓█
▒▒██▒▒▒▒▒█▓▓▓▓▓▓▓▓▓▓▓▓▓█
▒█▓▓█▒▒▒▒█▓▓█▓▓▓▓▓▓█▓▓▓█
█▓▓▓▓█▒▒▒█▓▓██▓▓▓▓▓██▓▓█
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▒█▓▓█▒▒█▓▓▒▒▓▒▒███▒▒▓▒▒▓▓█
▒█▓▓█▒▒█▓▓▒▒▓▒▒▒█▒▒▒▓▒▒▓▓█
pasted with "http://short-CUTr.tk#_open_source!.﴾͡๏̯͡๏﴿.

the code from the pasting above

:*:fb[::{#} ─────██████████════█`r`rthanks for adding`r▒▒▒▒▒▒▒▒▒██▒▒▒▒███▒▒▒▒██`r▒▒▒▒▒▒▒▒█▓▓█▒██▓▓▓██▒█▓▓█`r▒▒▒▒▒▒▒█▓▒▒▓█▓▓▓▓▓▓▓█▓▒▒▓█`r▒▒▒▒▒▒▒█▓▒▒▓ █▄ █▄█ ▀▄▀▓▒▒▓█`r▒▒▒▒▒▒▒▒█▓▒▒▓▓▓▓▓▓▓▓▓▒▒▓█`r▒▒██▒▒▒▒▒█▓▓▓▓▓▓▓▓▓▓▓▓▓█▒█▓▓█▒▒▒▒█▓▓█▓▓▓▓▓▓█▓▓▓█`r█▓▓▓▓█▒▒▒█▓▓██▓▓▓▓▓██▓▓█`r▒█▓▓█▒▒▒█▓▓▓▓▒▒█▓█▒▒▓▓▓▓█`r▒█▓▓█▒▒█▓▓▒▒▓▒▒███▒▒▓▒▒▓▓█`r▒█▓▓█▒▒█▓▓▒▒▓▒▒▒█▒▒▒▓▒▒▓▓█`rpasted with "http://short-CUTr.tk{#}_open_source{!}.﴾͡๏̯͡๏﴿.

if you frorget the " before http
the ahk.exe will trigger an alert
the ---> in the alert is directed to the line which causes the alert.

Solving: -click the H tray icon  -change in the 3rd* last line run to send  -save + reload the script
If it's more text like the example, the run command could be higher

my current 15kb script -.ahk ( includes 4 shortcuts with ca 400 characters output like above )

video: asciiART pasted via an "one after another key" shortcut fb[  vimeo /sex/3