Empty graph visualization page

[knightmarehs]

When the input doc is loo long, after run examples/graphml_visualize.py , the web page is empty.
Here is the traceback:

Uncaught SyntaxError: Bad control character in string literal in JSON at position 491086 (line 1 column 491087)
at JSON.parse ()
at graph_visualization.html:81:32

[gusye1234]

which commit you're using?

[knightmarehs]

I use main branch and commit 9755b5a.
I note that this is not the latest code and this commit maybe fixed this problem: 165920c
I will try it, thanks

[knightmarehs]

I think 165920c fixed this problem.
However when we use customized html path it may raise errors, I fixed this in this pr, please check.
#52

[gusye1234]

Try to use neo4j backend if you want a better vis for your grapgh.

[long123524]

Try to use neo4j backend if you want a better vis for your grapgh.

I used the neo4j as requested, but I no see graph results. What further improvements do I need to make?