Coverage problem for Vue component with src attribute

[grofzero]

I'm submitting a ... (check one with "x")

[x] bug report => search github for a similar issue or PR before submitting
[ ] feature request
[ ] support request

Current behavior
First I generate a coverage json for a component, that has the js given with src attribute. After that I cannot use istanbul to generate html reports. I think the problem is, that in the source I have a separate vue and js file, but the coverage report is generated for the appended file. Istanbul says:
"TypeError: Cannot read property 'text' of undefined" in istanbul html js.

Expected behavior
To generate html reports from coverage json generated by jest

Minimal reproduction of the problem with instructions
jest --coverage

istanbul report html

Please tell us about your environment:
VS Code, yarn

• jest-vue-preprocessor: 1.1.X
  1.3.1

• Node version : [ OSX | Linux | Windows ]
  8.9.1

• Platform: [ OSX | Linux | Windows ]
  Windows