If Website has ISO 8859-1 encoding, you have Uncaught URIError Javascript error with Chrome (and IE) when URL have some special character Samples with French character: URL: /Les-droits-r%E9els decode: /Les droits réels or with German Umlaut /Hasenb%F6hler-Franz decode: Hasenböhler-Franz Detailed Error: Uncaught URIError: URI malformedD @ piwik.js:30(anonymous function) @ piwik.js:51(anonymous function) @ piwik.js:52 I used latest Piwik, 2.14.x