  The strange quark contributions to the electromagnetic form factors of the
proton are ideal quantities to study the role of hidden flavor in the
properties of the proton. This has motivated intense experimental measurements
of these form factors. A major remaining source of systematic uncertainty in
these determinations is the assumption that charge symmetry violation (CSV) is
negligible. We use recent theoretical determinations of the CSV form factors
and reanalyse the available parity-violating electron scattering data, up to
$Q^2$ $\sim$ 1 GeV$^2$. Our analysis considers systematic expansions of the
strangeness electric and magnetic form factors of the proton. The results
provide an update to the determination of strangeness over a range of $Q^2$
where, under certain assumptions about the effective axial form factor, an
emergence of non-zero strangeness is revealed in the vicinity of $Q^2$ $\sim$
0.6 GeV$^2$. Given the recent theoretical calculations, it is found that the
current limits on CSV do not have a significant impact on the interpretation of
the measurements and hence suggests an opportunity for a next generation of
parity-violating measurements to more precisely map the distribution of strange
quarks.
