In chapter 3, section 15, using single quotes for strings in the solution returns the following
✘ Did you overwrite the doc._.book extension with the context value of 'book'?
The solution is accepted if they are replaced with double quotes without any other changes to the code.
In chapter 3, section 15, using single quotes for strings in the solution returns the following
✘ Did you overwrite the doc._.book extension with the context value of 'book'?The solution is accepted if they are replaced with double quotes without any other changes to the code.