Hello, 


I found that the eww seems handle link anchor not correctly. Reproduce
step:

1. download the html file in attachment (comes from dash lua5.1 docset).
2. eww open the link: file:///path-to/file#//apple_ref/func/string%2Esub
3. eww cannot navigate to the correct position.
4. open the same link in chrome/safari, works fine.