Cannot read property 'Symbol(Symbol.iterator)' of undefined

[qdliang-sequoia]

Is there an existing issue for this?

• I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
• I have reviewed the documentation https://docs.sentry.io/
• I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/browser

SDK Version

7.64.0

Framework Version

17.0.2

Link to Sentry event

No response

SDK Setup

No response

Steps to Reproduce

1. Chrome v.79
2. windows 10
3. pageload 时报出该错误

Expected Result

期待不报此错误

Actual Result

Cannot read property 'Symbol(Symbol.iterator)' of undefined

[lforst]

Hi, can you please share a stack trace of this error and share how to reproduce it? Thanks!

[qdliang-sequoia]

Hi, can you please share a stack trace of this error and share how to reproduce it? Thanks!

{
  "type": "TypeError",
  "value": "Cannot read property 'Symbol(Symbol.iterator)' of undefined",
  "stacktrace": {
    "frames": [
      {
        "function": "n",
        "module": "@sentry-internal/src/browser/request",
        "filename": "../node_modules/@sentry-internal/src/browser/request.ts",
        "lineno": 179,
        "colno": 1,
        "pre_context": [
          " */",
          "function addHTTPTimings(span: Span): void {",
          "  const url = span.data.url;",
          "  const observer = new PerformanceObserver(list => {",
          "    const entries = list.getEntries() as PerformanceResourceTiming[];"
        ],
        "context_line": "    entries.forEach(entry => {",
        "post_context": [
          "      if ((entry.initiatorType === 'fetch' || entry.initiatorType === 'xmlhttprequest') && entry.name.endsWith(url)) {",
          "        const spanData = resourceTimingEntryToSpanData(entry);",
          "        spanData.forEach(data => span.setData(...data));",
          "        observer.disconnect();",
          "      }"
        ],
        "in_app": false,
        "data": {
          "resolved_with": "release-old",
          "symbolicated": true
        }
      },
      {
        "function": "Array.forEach",
        "filename": "native",
        "abs_path": "native",
        "in_app": false
      },
      {
        "function": "entries",
        "module": "@sentry-internal/src/browser/request",
        "filename": "../node_modules/@sentry-internal/src/browser/request.ts",
        "lineno": 181,
        "colno": 1,
        "pre_context": [
          "  const url = span.data.url;",
          "  const observer = new PerformanceObserver(list => {",
          "    const entries = list.getEntries() as PerformanceResourceTiming[];",
          "    entries.forEach(entry => {",
          "      if ((entry.initiatorType === 'fetch' || entry.initiatorType === 'xmlhttprequest') && entry.name.endsWith(url)) {"
        ],
        "context_line": "        const spanData = resourceTimingEntryToSpanData(entry);",
        "post_context": [
          "        spanData.forEach(data => span.setData(...data));",
          "        observer.disconnect();",
          "      }",
          "    });",
          "  });"
        ],
        "in_app": false,
        "data": {
          "resolved_with": "release-old",
          "symbolicated": true
        }
      },
      {
        "function": "<anonymous>",
        "module": "@sentry-internal/src/browser/request",
        "filename": "../node_modules/@sentry-internal/src/browser/request.ts",
        "lineno": 228,
        "colno": 1,
        "pre_context": [
          "function getAbsoluteTime(time: number): number {",
          "  return ((browserPerformanceTimeOrigin || performance.timeOrigin) + time) / 1000;",
          "}",
          "",
          "function resourceTimingEntryToSpanData(resourceTiming: PerformanceResourceTiming): [string, string | number][] {"
        ],
        "context_line": "  const { name, version } = extractNetworkProtocol(resourceTiming.nextHopProtocol);",
        "post_context": [
          "",
          "  const timingSpanData: [string, string | number][] = [];",
          "",
          "  timingSpanData.push(['network.protocol.version', version], ['network.protocol.name', name]);",
          ""
        ],
        "in_app": false,
        "data": {
          "resolved_with": "release-old",
          "symbolicated": true
        }
      },
      {
        "function": "<anonymous>",
        "module": "@sentry-internal/src/browser/request",
        "filename": "../node_modules/@sentry-internal/src/browser/request.ts",
        "lineno": 202,
        "colno": 1,
        "pre_context": [
          " */",
          "export function extractNetworkProtocol(nextHopProtocol: string): { name: string; version: string } {",
          "  let name = 'unknown';",
          "  let version = 'unknown';",
          "  let _name = '';"
        ],
        "context_line": "  for (const char of nextHopProtocol) {",
        "post_context": [
          "    // http/1.1 etc.",
          "    if (char === '/') {",
          "      [name, version] = nextHopProtocol.split('/');",
          "      break;",
          "    }"
        ],
        "in_app": false,
        "data": {
          "resolved_with": "release-old",
          "symbolicated": true
        }
      }
    ]
  },
  "mechanism": { "type": "onerror", "handled": false }
}

触发该错误的浏览器版本是：Chrome v.79 以及 v.64
windows 10

[lforst]

@qdliang-sequoia Thanks. What does one need to do to get this error?

[qdliang-sequoia]

@qdliang-sequoia Thanks. What does one need to do to get this error?

希望可以得到修复或具体原因