flake8
passed.
JSHint
passed.
Avoid crashes when generating PII-safe URLs without a resolver match.
Review Request #9978 — Created May 24, 2018 and submitted
When attempting to generate a PII-safe URL on 404 Not Found pages or in
other locations where a resolver match was not present,
build_pii_safe_page_url_for_requestwould crash, failing when
accessing an attribute of the non-existent match.It now checks for this, falling back on an empty dictionary instead.
Tested that this fixed a crash in production.
Unit tests pass.
