I'm always getting this when starting vim:

Error detected while processing /home/vivo/.vim/plugged/vim-sequence-diagram/plugin/vim-sequence-diagram.vim:
line   16:
E227: mapping already exists for \t

I've tried to remap it on the vimrc but it does not solve the issue:

nmap <unique> <leader>sd <Plug>GenerateDiagram

When I press the +'', the files are generated in 'file:///tmp/vim-js-seq' (which takes me a while to find), but the HTML file is not open automatically as expected.

I'm on linux, and using google-chrome on KDE as my main browser.

I'm using this for generating diagram for documentation. But it is a tedious work to open developer mode and copy the svg element out and paste it into a svg file manually.

Is it good to have a download button for that, or anything equivalent method that help saving previewed svg?

bakctick(`) in description will break html format, need escaping.

I have copied the example from https://bramp.github.io/js-sequence-diagrams/ and tried to run :<plug>GenerateDiagram but it's failing with E488: Trailing characters.

I'm sure it used to work, but it doesn't seem to now.

out.html is generated in /tmp/vim-js-seq but no browser is opened and no error generated, making it seem like nothing is happening.

vim 8

I tried default as well as remapping based on the README but nothing happens when triggering the map that call Generate_diagram.

I tried :call vim_seq_diag#Generate_diagram("PATH") and it indeed generates a file in /tmp/.... My vim knowledge is lacking in a clear path forward. Any suggestions? There isn't any vim output when the map gets hit so I'm not sure what info I could provide to help here.