1341877 - tons of "Empty histogram keys are not allowed." messages in the browser console when running a local build

Status: RESOLVED DUPLICATE of bug 1341996

(DevTools :: General, defect)

Description

[Dana Keeler (she/her) (use needinfo) [:keeler] (on leave)]

(This is on a local build - I couldn't seem to reproduce using Nightly as downloaded from build servers.)

STR:

1. build Nightly (debug)
2. run Nightly, open the browser console
3. see lots of "Empty histogram keys are not allowed." errors

Under gdb, this was the JS stack I got:

0 logKeyed(histogramId = "DEVTOOLS_JAVASCRIPT_ERROR_DISPLAYED", key = "", value = true) ["resource://gre/modules/commonjs/toolkit/loader.js -> resource://devtools/client/shared/telemetry.js":310]
    this = [object Object]
1 reportPageError(category = "js", scriptError = [object Object]) ["resource://gre/modules/commonjs/toolkit/loader.js -> resource://devtools/client/webconsole/webconsole.js":1532]
    this = [object Object]
2 _outputMessageFromQueue(hudIdSupportsString = hud_1, item = [function]) ["resource://gre/modules/commonjs/toolkit/loader.js -> resource://devtools/client/webconsole/webconsole.js":2191]
    this = [object Object]
3 _flushMessageQueue([xpconnect wrapped nsITimer @ 0x7fd0c9842e60 (native @ 0x7fd0d2de7a80)]) ["resource://gre/modules/commonjs/toolkit/loader.js -> resource://devtools/client/webconsole/webconsole.js":2080]
    this = [object Object]
4 bound _flushMessageQueue([xpconnect wrapped nsITimer @ 0x7fd0c9842e60 (native @ 0x7fd0d2de7a80)]) ["self-hosted":913]
    this = function bound _flushMessageQueue() {
    [native code]
}

Comment 1

[Mark Banner (:standard8)]

Bug 1341996 has more info, so duping forward.