UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36

Steps to reproduce the problem:
1. Navigate to the following URL with devtools open:

https://httpbin.org/response-headers?server-timing=source;foo,%20edgeID;cache-lcy9384-LCY,%20edgeDatacenter;LCY,%20edgeIP;10.101.1.209,%20edgeCacheState;HIT-CLUSTER,%20edgeStaleInfo;(null),%20edgeObjectDigestRatio;0.137,%20edgeVCLVer;39Mzqa4U.60_88-3a2974b9c9d1c7,%20edgeElapsedTimeMS=3,%20edgeObjCacheHitCount;1,%20edgeObjTTL;31536000.000,%20edgeObjSWR;60.000,%20edgeObjSIE;86400.000,%20edgeObjAge;3844,%20edgeObjDateCreated;1500303811,%20edgeObjRemainingTTL;,%20edgeObjRemainingSWR;,%20edgeObjRemainingSIE;,%20clientIP;10.1.132.132,%20clientLat;91.515,%20clientLng;-4.083,%20clientCity;london,%20clientBrowserName;Chrome,%20clientBrowserVer;,%20clientIsMobile;0,%20backendID;cluster_london_city_uk,%20backendHealthy;1,%20backendIP;10.1.135.126,%20backendName;39MzaFBISKerFJYsF&server-timing=backendExecTimeMS=23

Alternatively, if the httpbin.org service is no longer available, create a URL whose HTTP response includes two `Server-Timing` headers, as follows:

Server-Timing:backendExecTimeMS=23
Server-Timing:source;foo, edgeID;cache-lcy9384-LCY, edgeDatacenter;LCY, edgeIP;10.101.1.209, edgeCacheState;HIT-CLUSTER, edgeStaleInfo;(null), edgeObjectDigestRatio;0.137, edgeVCLVer;39Mzqa4U.60_88-3a2974b9c9d1c7, edgeElapsedTimeMS=3, edgeObjCacheHitCount;1, edgeObjTTL;31536000.000, edgeObjSWR;60.000, edgeObjSIE;86400.000, edgeObjAge;3844, edgeObjDateCreated;1500303811, edgeObjRemainingTTL;, edgeObjRemainingSWR;, edgeObjRemainingSIE;, clientIP;10.1.132.132, clientLat;91.515, clientLng;-4.083, clientCity;london, clientBrowserName;Chrome, clientBrowserVer;, clientIsMobile;0, backendID;cluster_london_city_uk, backendHealthy;1, backendIP;10.1.135.126, backendName;39MzaFBISKerFJYsF

2. Switch to the Timing panel in devtools

What is the expected behavior?
Both keys and values should be displayed for non-timing metrics.

What went wrong?
For non-timing metrics, only the values are displayed, and some metrics are not visible at all.

Did this work before? N/A 

Chrome version: 59.0.3071.115  Channel: stable
OS Version: OS X 10.12.5
Flash Version:
 

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