web: fix two undefined var bugs #5062

Job	Run time
libs-build	5m 44s
apps-build	10m 15s
libs-cmake-build	7m 15s
client-armv6-build	3m 55s
client-arm-build	3m 20s
client-arm64-build	3m 10s
client-x86-build	3m 24s
client-x86_64-build	3m 32s
manager-build (assembleRelease)	3m 59s
manager-build (assembleXiaomi_release)	3m 53s
manager-build (assembleArmv6_release)	4m 2s
manager-build (jacocoTestReportDebug)	5m 55s
	58m 24s

Provide feedback