URL Encode Blog Post Slug

If a blog post title includes a '=' symbol, the blog post returns a 404 error, I assume because the slug isn't being URL encoded?

I'm not using a custom slug, but is there any way to ensure that if the author enters an invalid character into the post title then to encode the slug?

Diagnostics:

Perch Runway: 3.0.4
Production mode: Development (1)
Installed apps: content (3.0.4), assets (3.0.4), categories (3.0.4), perch_blog (5.5.1), perch_forms (1.9)
DB driver: PDO
DB tables: perch2_backup_plans (1), perch2_backup_resources (10), perch2_backup_runs (9), perch2_blog_authors (1), perch2_blog_comments (0), perch2_blog_index (489), perch2_blog_posts (17), perch2_blog_posts_to_tags (0), perch2_blog_sections (1), perch2_blog_tags (0), perch2_blogs (1), perch2_categories (1), perch2_category_counts (1), perch2_category_sets (1), perch2_collection_index (755), perch2_collection_items (132), perch2_collection_revisions (54), perch2_collections (3), perch2_content_index (1006), perch2_content_items (167), perch2_content_locks (0), perch2_content_regions (16), perch2_forms (3), perch2_forms_responses (4), perch2_menu_items (12), perch2_navigation (0), perch2_navigation_pages (0), perch2_page_routes (7), perch2_page_templates (33), perch2_pages (13), perch2_resource_log (134), perch2_resource_tags (3), perch2_resources (64), perch2_resources_to_tags (6), perch2_scheduled_tasks (2), perch2_settings (30), perch2_user_passwords (0), perch2_user_privileges (40), perch2_user_role_privileges (20), perch2_user_roles (2), perch2_users (3)
Users: 3
App runtimes:
<?php
    $apps_list = array(
        'perch_blog',
        'perch_forms'
    );
Scheduled tasks for perch_blog: delete_spam_comments (1440 mins)
Scheduled tasks for Backup: plan_1 (10 mins)
Editor plug-ins:
H1: 895ce35e7e6c7f92b9c206ad83b83a05
L1: cd7da0f335aa34ac220f6c163fa316aa
F1: 0c66c2e1f82f9e0b7617b2cb8270f2c7
headerColour: #ffffff
content_singlePageEdit: 1
siteURL: /
hideBranding: 1
content_collapseList: 1
lang: en-gb
update_2.8.34: done
perch_blog_site_name:
headerScheme: light
update_runway_2.8.34: done
latest_version:
dashboard: 0
hide_pwd_reset: 0
content_hideNonEditableRegions: 0
content_frontend_edit: 0
perch_blog_update: 5.0.1
perch_blog_post_url: /news/{postSlug}
perch_blog_slug_format: {postTitle}
perch_blog_akismet_key:
perch_blog_max_spam_days: 30
perch_blog_comment_notify: 0
update_runway_3.0: done
siteOffline: 0
update_runway_3.0.1: done
logoPath: /admin/resources/logo.svg
update_runway_3.0.2: done
helpURL: creativemonster.co.uk
on_sale_version: 3.0.4
update_runway_3.0.4: done
content_skip_region_list: 0
PERCH_DEVELOPMENT: 10
PERCH_STAGING: 50
PERCH_PRODUCTION: 100
PERCH_SITEPATH: /Users/Toby/Sites/catch
PERCH_SCHEDULE_SECRET: 1bK6mcBYEmBNPksH
PERCH_DB_USERNAME: root
PERCH_DB_DATABASE: perch_catch_local
PERCH_DB_SERVER: localhost
PERCH_DB_PREFIX: perch2_
PERCH_EMAIL_FROM: info@catchgroup.com
PERCH_EMAIL_FROM_NAME: Catch Resource Management
PERCH_LOGINPATH: /admin
PERCH_PATH: /Users/Toby/Sites/catch/admin
PERCH_CORE: /Users/Toby/Sites/catch/admin/core
PERCH_RESFILEPATH: /Users/Toby/Sites/catch/admin/resources
PERCH_RESPATH: /admin/resources
PERCH_HTML5: 1
PERCH_TZ: UTC
PERCH_YOUTUBE_API_KEY: AIzaSyB_oQZ-2loHP9uftDX2obdv9beODmpNzao
PERCH_PRODUCTION_MODE: 1
PERCH_RUNWAY: 1
PERCH_ERROR_MODE: DIE
PERCH_DATE_LONG: %d %B %Y
PERCH_DATE_SHORT: %d %b %Y
PERCH_TIME_SHORT: %H:%M
PERCH_TIME_LONG: %H:%M:%S
PERCH_RUNWAY_ROUTED:
PERCH_STRONG_PASSWORDS:
PERCH_ASSET_VERSION: ed79f7a54b300ef2b1e6
PERCH_DEBUG:
PERCH_PREVIEW_ARG: preview
PERCH_TEMPLATE_PATH: /Users/Toby/Sites/catch/admin/templates
PERCH_TEMPLATE_FILTERS:
PERCH_DEFAULT_DOC: index.php
PERCH_DEFAULT_EXT: .php
PERCH_XHTML_MARKUP:
PERCH_RWD: 1
PERCH_HTML_ENTITIES:
PERCH_SSL:
PERCH_STRIPSLASHES:
PERCH_PROGRESSIVE_FLUSH: 1
PERCH_PARANOID:
PERCH_FORCE_SECURE_COOKIES:
PERCH_DEFAULT_BUCKET: default
PERCH_TRANSLATION_ASSIST:
PERCH_PASSWORD_MIN_LENGTH: 6
PERCH_MAX_FAILED_LOGINS: 10
PERCH_AUTH_LOCKOUT_DURATION: 1 HOUR
PERCH_VERIFY_UPLOADS:
PERCH_PRIV_ASSIST:
PERCH_AUTH_PLUGIN:
PERCH_DB_CHARSET: utf8
PERCH_DB_PORT:
PERCH_DB_SOCKET:
PERCH_APPS_EDITOR_PLUGIN: markitup
PERCH_APPS_EDITOR_MARKUP_LANGUAGE: markdown
Hosting settings

PHP: 7.0.13
Zend: 3.0.0
OS: Darwin
SAPI: cgi-fcgi
Safe mode: not detected
MySQL client: mysqlnd 5.0.12-dev - 20150407 - $Id: 241ae00989d1995ffcbbf63d579943635faf9972 $
MySQL server: 5.6.34
Free disk space: 29.12 GB
Extensions: Core, date, libxml, openssl, pcre, sqlite3, zlib, bcmath, bz2, calendar, ctype, curl, dom, hash, fileinfo, filter, ftp, gd, SPL, iconv, intl, json, ldap, mbstring, session, standard, mysqlnd, PDO, pdo_mysql, pdo_sqlite, Phar, posix, readline, Reflection, mysqli, SimpleXML, soap, sockets, exif, tokenizer, wddx, xml, xmlreader, xmlwriter, xsl, zip, cgi-fcgi, imap, gettext, mcrypt, pgsql, pdo_pgsql, igbinary, memcached
GD: Yes
ImageMagick: No
PHP max upload size: 32M
PHP max form post size: 32M
PHP memory limit: 128M
Total max uploadable file size: 32M
Resource folder writeable: Yes
Session timeout: 24 minutes
Native JSON: Yes
Filter functions: Yes
Transliteration functions: Yes
PHP_FCGI_CHILDREN: 4
PWD: /Applications/MAMP/fcgi-bin
PHP_FCGI_MAX_REQUESTS: 200
__CF_USER_TEXT_ENCODING: 0x1F5:0x0:0x2
ORIG_SCRIPT_NAME: /fcgi-bin/php7.0.13.fcgi
ORIG_PATH_TRANSLATED: /Users/Toby/Sites/catch/admin/core/settings/diagnostics/index.php
ORIG_PATH_INFO: /admin/core/settings/diagnostics/index.php
ORIG_SCRIPT_FILENAME: /Applications/MAMP/fcgi-bin/php7.0.13.fcgi
SCRIPT_NAME: /admin/core/settings/diagnostics/index.php
REQUEST_URI: /admin/core/settings/diagnostics/?extended
QUERY_STRING: extended
REQUEST_METHOD: GET
SERVER_PROTOCOL: HTTP/1.1
GATEWAY_INTERFACE: CGI/1.1
REDIRECT_URL: /admin/core/settings/diagnostics/index.php
REDIRECT_QUERY_STRING: extended
REMOTE_PORT: 62391
SCRIPT_FILENAME: /Users/Toby/Sites/catch/admin/core/settings/diagnostics/index.php
SERVER_ADMIN: you@example.com
DOCUMENT_ROOT: /Users/Toby/Sites/catch
REMOTE_ADDR: ::1
SERVER_PORT: 8888
SERVER_ADDR: ::1
SERVER_NAME: loc.catch
SERVER_SOFTWARE: Apache
PATH: /usr/bin:/bin:/usr/sbin:/sbin
HTTP_COOKIE: cmssb=1; PHPSESSID=a5ad4b785bd9dbfecdf2e81c93429686; cmsa=1
HTTP_ACCEPT_LANGUAGE: en-US,en;q=0.8
HTTP_ACCEPT_ENCODING: gzip, deflate, sdch
HTTP_REFERER: https://loc.catch:8888/admin/core/settings/diagnostics/add-ons/
HTTP_ACCEPT: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
HTTP_USER_AGENT: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36
HTTP_UPGRADE_INSECURE_REQUESTS: 1
HTTP_CONNECTION: keep-alive
HTTP_HOST: loc.catch:8888
REDIRECT_STATUS: 200
REDIRECT_HANDLER: php-fastcgi
FCGI_ROLE: RESPONDER
PHP_SELF: /admin/core/settings/diagnostics/index.php
REQUEST_TIME_FLOAT: 1495101752.46
REQUEST_TIME: 1495101752
argc: 1