throws an error

[idibidiart]

TypeError: namespace.charCodeAt is not a function

Trying to run it and it gives this error with or without command line arguments

[aliry]

what configuration are you using?

[idibidiart]

I just run it from command line with or without parameters and it crashes instantly.

The Readme does not say anything about a configuration profile.

[axemclion]

Can you run it after setting an environment variable called export DEBUG=*

[malled]

Fresh install on ubuntu 16.04:

ubuntu@ubuntu-xenial:~$ browser-perf
  bp:index Selenium is on localhost +0ms
  bp:metrics Initializing Metrics +5ms
  bp:probes Registering probe PerfLogProbe +225ms
  bp:probes:AndroidTracingProbe Initialize +3ms
  bp:probes Registering probe AndroidTracingProbe +0ms
  bp:probes Registering probe PerfLogProbe +3ms
  bp:probes Registering probe AndroidTracingProbe +1ms
  bp:probes Registering probe RafBenchmarkingProbe +3ms
  bp:probes Registering probe NavTimingProbe +6ms
  bp:probes Registering probe NetworkResourcesProbe +5ms
  bp:metrics TimelineMetrics setup called +4ms
  bp:metrics ChromeTracingMetrics setup called +3ms
  bp:metrics NetworkResources setup called +2ms
  bp:probes setup +1ms
  bp:probes PerfLogProbe setup called +2ms
  bp:probes AndroidTracingProbe setup called +2ms
  bp:probes NetworkResourcesProbe setup called +1ms
  bp:index Stating browser with {"browserName":"chrome","version":35,"chromeOptions":{"perfLoggingPrefs":{"traceCategories":",blink.console,devtools.timeline,disabled-by-default-devtools.timeline,to

plevel,disabled-by-default-devtools.timeline.frame,benchmark"},"args":["--enable-gpu-benchmarking","--enable-thread-composting"]},"loggingPrefs":{"performance":"ALL"}} +2ms
  bp:selenium CALL init({"browserName":"chrome","version":35,"chromeOptions":{"perfLoggin  +3ms
  bp:selenium CALL quit()  +71ms
/usr/lib/node_modules/browser-perf/node_modules/q/q.js:155
                throw e;
                ^

TypeError: namespace.charCodeAt is not a function
    at selectColor (/usr/lib/node_modules/browser-perf/node_modules/debug/src/debug.js:48:46)
    at createDebug (/usr/lib/node_modules/browser-perf/node_modules/debug/src/debug.js:120:17)
    at require.browsers (/usr/lib/node_modules/browser-perf/lib/cli.js:37:3)
    at /usr/lib/node_modules/browser-perf/lib/index.js:31:3
    at _fulfilled (/usr/lib/node_modules/browser-perf/node_modules/q/q.js:854:54)
    at self.promiseDispatch.done (/usr/lib/node_modules/browser-perf/node_modules/q/q.js:883:30)
    at Promise.promise.promiseDispatch (/usr/lib/node_modules/browser-perf/node_modules/q/q.js:816:13)
    at /usr/lib/node_modules/browser-perf/node_modules/q/q.js:624:44
    at runSingle (/usr/lib/node_modules/browser-perf/node_modules/q/q.js:137:13)
    at flush (/usr/lib/node_modules/browser-perf/node_modules/q/q.js:125:13)

error seems to derive from debug package.
dirty quick fix: disable debug output

[stephenwil]

How do you disable debug output? Getting the same error, and it's now 2019 :-)

[malled]

I've stopped using it, either because it didn't fulfill my needs or I couldn't get it running, cannot remember ;). But you could try to update the debug package through npm or edit it's code directly

[matclab]

I got the same error here:

browser-perf -v http://localhost:8001/bigjson.html --browsers=firefox --selenium=localhost:4444/wd/hub
  bp:index Selenium is on localhost +0ms
  bp:metrics Initializing Metrics +1ms
  bp:probes Registering probe PerfLogProbe +80ms
  bp:probes:AndroidTracingProbe Initialize +1ms
  bp:probes Registering probe AndroidTracingProbe +0ms
  bp:probes Registering probe PerfLogProbe +2ms
  bp:probes Registering probe AndroidTracingProbe +0ms
  bp:probes Registering probe RafBenchmarkingProbe +1ms
  bp:probes Registering probe NavTimingProbe +1ms
  bp:probes Registering probe NetworkResourcesProbe +1ms
  bp:metrics TimelineMetrics setup called +0ms
  bp:metrics ChromeTracingMetrics setup called +0ms
  bp:metrics NetworkResources setup called +1ms
  bp:probes setup +0ms
  bp:probes PerfLogProbe setup called +0ms
  bp:probes AndroidTracingProbe setup called +0ms
  bp:probes NetworkResourcesProbe setup called +0ms
  bp:index Stating browser with {"browserName":"firefox","chromeOptions":{"perfLoggingPrefs":{}},"loggingPrefs":{"performance":"ALL"}} +1ms
  bp:selenium CALL init({"browserName":"firefox","chromeOptions":{"perfLoggingPrefs":{}},  +0ms
  bp:selenium RESPONSE init({"browserName":"firefox","chromeOptions":{"perfLoggingPrefs":{}}, "72e24769-6779-442a-aaa4-0261c9c56276",{"acceptInsecureCerts":false,"b +3s
  bp:index Session is 72e24769-6779-442a-aaa4-0261c9c56276 +4ms
  bp:index Running Prescript +1ms
  bp:selenium CALL get("http://localhost:8001/bigjson.html")  +0ms
  bp:selenium RESPONSE get("http://localhost:8001/bigjson.html")  +9s
  bp:probes start +1ms
  bp:probes PerfLogProbe start called +0ms
  bp:selenium CALL logTypes()  +0ms
  bp:selenium CALL quit()  +13ms
  bp:selenium RESPONSE quit()  +1s
/usr/lib/node_modules/browser-perf/node_modules/q/q.js:155
                throw e;
                ^

TypeError: namespace.charCodeAt is not a function
    at selectColor (/usr/lib/node_modules/browser-perf/node_modules/debug/src/debug.js:48:46)
    at createDebug (/usr/lib/node_modules/browser-perf/node_modules/debug/src/debug.js:120:17)
    at require.browsers (/usr/lib/node_modules/browser-perf/lib/cli.js:37:3)
    at /usr/lib/node_modules/browser-perf/lib/index.js:31:3
    at _fulfilled (/usr/lib/node_modules/browser-perf/node_modules/q/q.js:854:54)
    at /usr/lib/node_modules/browser-perf/node_modules/q/q.js:883:30
    at Promise.promise.promiseDispatch (/usr/lib/node_modules/browser-perf/node_modules/q/q.js:816:13)
    at /usr/lib/node_modules/browser-perf/node_modules/q/q.js:624:44
    at runSingle (/usr/lib/node_modules/browser-perf/node_modules/q/q.js:137:13)
    at flush (/usr/lib/node_modules/browser-perf/node_modules/q/q.js:125:13)

And selenium standalone server log is :

11:07:47.778 INFO [GridLauncherV3.parse] - Selenium server version: 3.141.59, revision: e82be7d358
11:07:47.853 INFO [GridLauncherV3.lambda$buildLaunchers$3] - Launching a standalone Selenium Server on port 4444
2020-06-25 11:07:47.899:INFO::main: Logging initialized @296ms to org.seleniumhq.jetty9.util.log.StdErrLog
11:07:48.097 INFO [WebDriverServlet.<init>] - Initialising WebDriverServlet
11:07:48.186 INFO [SeleniumServer.boot] - Selenium Server is up and running on port 4444
11:07:52.802 INFO [ActiveSessionFactory.apply] - Capabilities are: {
  "browserName": "firefox",
  "chromeOptions": {
    "perfLoggingPrefs": {
    }
  },
  "javascriptEnabled": true,
  "loggingPrefs": {
    "performance": "ALL"
  },
  "version": ""
}
11:07:52.804 INFO [ActiveSessionFactory.lambda$apply$11] - Matched factory org.openqa.selenium.grid.session.remote.ServicedSession$Factory (provider: org.openqa.selenium.chrome.ChromeDriverService)
Starting ChromeDriver 83.0.4103.97 (326d148b9655369b86498d9ecca39f63dd2bdd2d-refs/branch-heads/4103@{#657}) on port 23774
Only local connections are allowed.
Please see https://chromedriver.chromium.org/security-considerations for suggestions on keeping ChromeDriver safe.
ChromeDriver was started successfully.
11:07:53.088 INFO [ServicedSession$Factory.apply] - invalid argument: entry 0 of 'firstMatch' is invalid
from invalid argument: perfLoggingPrefs specified, but performance logging was not enabled
Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:25:53'
System info: host: 'loriot', ip: '192.168.0.161', os.name: 'Linux', os.arch: 'amd64', os.version: '5.6.15-arch1-1', java.version: '1.8.0_252'
Driver info: driver.version: unknown
remote stacktrace: #0 0x55a5572b459a <unknown>

org.openqa.selenium.InvalidArgumentException: invalid argument: entry 0 of 'firstMatch' is invalid
from invalid argument: perfLoggingPrefs specified, but performance logging was not enabled
Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:25:53'
System info: host: 'loriot', ip: '192.168.0.161', os.name: 'Linux', os.arch: 'amd64', os.version: '5.6.15-arch1-1', java.version: '1.8.0_252'
Driver info: driver.version: unknown
remote stacktrace: #0 0x55a5572b459a <unknown>

	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at org.openqa.selenium.remote.W3CHandshakeResponse.lambda$errorHandler$0(W3CHandshakeResponse.java:62)
	at org.openqa.selenium.remote.HandshakeResponse.lambda$getResponseFunction$0(HandshakeResponse.java:30)
	at org.openqa.selenium.remote.ProtocolHandshake.lambda$createSession$0(ProtocolHandshake.java:126)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958)
	at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
	at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:499)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:486)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
	at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:531)
	at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:128)
	at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:74)
	at org.openqa.selenium.grid.session.remote.RemoteSession$Factory.performHandshake(RemoteSession.java:147)
	at org.openqa.selenium.grid.session.remote.ServicedSession$Factory.apply(ServicedSession.java:161)
	at org.openqa.selenium.remote.server.ActiveSessionFactory.lambda$apply$12(ActiveSessionFactory.java:180)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.stream.ReferencePipeline$11$1.accept(ReferencePipeline.java:440)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958)
	at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
	at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:499)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:486)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
	at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:531)
	at org.openqa.selenium.remote.server.ActiveSessionFactory.apply(ActiveSessionFactory.java:183)
	at org.openqa.selenium.remote.server.NewSessionPipeline.lambda$null$2(NewSessionPipeline.java:66)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.Collections$2.tryAdvance(Collections.java:4719)
	at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
	at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:499)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:486)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
	at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:531)
	at org.openqa.selenium.remote.server.NewSessionPipeline.lambda$createNewSession$3(NewSessionPipeline.java:69)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.stream.DistinctOps$1$2.accept(DistinctOps.java:175)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
	at java.util.stream.Streams$StreamBuilderImpl.tryAdvance(Streams.java:405)
	at java.util.stream.Streams$ConcatSpliterator.tryAdvance(Streams.java:728)
	at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
	at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:499)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:486)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
	at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:531)
	at org.openqa.selenium.remote.server.NewSessionPipeline.createNewSession(NewSessionPipeline.java:72)
	at org.openqa.selenium.remote.server.commandhandler.BeginSession.execute(BeginSession.java:65)
	at org.openqa.selenium.remote.server.WebDriverServlet.lambda$handle$0(WebDriverServlet.java:235)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
11:07:53.102 INFO [ActiveSessionFactory.lambda$apply$11] - Matched factory org.openqa.selenium.grid.session.remote.ServicedSession$Factory (provider: org.openqa.selenium.firefox.GeckoDriverService)
1593076075689	Marionette	INFO	Listening on port 35259
11:07:55.826 INFO [ProtocolHandshake.createSession] - Detected dialect: W3C
11:07:55.865 INFO [RemoteSession$Factory.lambda$performHandshake$0] - Started new session 9b7c3c79-9f08-44b5-9241-12e6f2240336 (org.openqa.selenium.firefox.GeckoDriverService)
1593076085988	Marionette	INFO	Stopped listening on port 35259
11:08:07.423 INFO [ActiveSessions$1.onStop] - Removing session 9b7c3c79-9f08-44b5-9241-12e6f2240336 (org.openqa.selenium.firefox.GeckoDriverService)

with browser-perf 1.4.11, firefox 77.0.1 and selenium-server-standalone 3.141.59

[matclab]

I imagine performance logging was not enabled in selenium may be the root cause.