How can i use webrequest to load file in Bolt?

Hi,guys~
I want to load .txt file in webGL,so i must use webquest to load file,but it doesn’t work now,please help TT.

The .txt file i put it in \Assets\StreamingAssets\FileLoad.txt.
My graph is in attached file.
I want to use webrequest.get to load file,but i don’t know whether i need the sendwebrequest node,please help again~!

I modified my graph,it can work in editor and .exe,but didn’t in webGL,pls help!