Some files aren't rendered properly.
For example try this one:
https://es.wikipedia.org/wiki/Archivo:Barrios_del_Distrito_Centro_(Madrid).svg
rendered as

by chrome or by other SVG viewers but rendered as

by inkview and inkscape.
As you can see in the area marked by the arrow there is a break of the line, sometimes is bigger.
Or even like this, depending on the zoom:
Is it a problem with Inkscape or is the file broken?
Anyway other programs show it properly.
Regards