Spec: macro reporting support

[qingxinwu]

Spec macro reporting support on the Protected Audience side, which includes:

1. Add a new allowedReportingOrigins field to IG's ad, and handles it.
2. Add a new API registerAdMacro to reporting script runner, and deal with registered macros.
3. Add a todo to pass the macro map to fenced frame config, once the fenced frame spec adds the variable.

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💥 Error: 500 Internal Server Error 💥

PR Preview failed to build. (Last tried on Sep 11, 2023, 3:15 AM UTC).

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PR Preview relies on a number of web services to run. There seems to be an issue with the following one:

🚨 CSS Spec Preprocessor - CSS Spec Preprocessor is the web service used to build Bikeshed specs.

🔗 Related URL

Error running preprocessor, returned code: 1.
Traceback (most recent call last):
  File "/sites/api.csswg.org/python310venv/bin/bikeshed", line 8, in 
    sys.exit(main())
  File "/sites/api.csswg.org/python310venv/lib/python3.10/site-packages/bikeshed/cli.py", line 449, in main
    handleSpec(options, extras)
  File "/sites/api.csswg.org/python310venv/lib/python3.10/site-packages/bikeshed/cli.py", line 506, in handleSpec
    doc.preprocess()
  File "/sites/api.csswg.org/python310venv/lib/python3.10/site-packages/bikeshed/Spec.py", line 162, in preprocess
    self.processDocument()
  File "/sites/api.csswg.org/python310venv/lib/python3.10/site-packages/bikeshed/Spec.py", line 283, in processDocument
    u.inlineRemoteIssues(self)
  File "/sites/api.csswg.org/python310venv/lib/python3.10/site-packages/bikeshed/unsortedJunk.py", line 1280, in inlineRemoteIssues
    responses = json.loads(doc.dataFile.fetch("github-issues.json", str=True))
  File "/usr/local/lib/python3.10/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
  File "/usr/local/lib/python3.10/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/local/lib/python3.10/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

If you don't have enough information above to solve the error by yourself (or to understand to which web service the error is related to, if any), please file an issue.

[qingxinwu]

@domfarolino @brusshamilton PTAL. Thanks

[domfarolino]

Editorially this looks mostly fine, but I'd like someone with more domain context to verify that this is sound from that perspective.

[domfarolino]

Editorially this lgtm, but it'd be ideal to get approval from someone with more context on the domain specifics.

[gtanzer]

@domfarolino I previously looked and it LGTM, other than the TODO integration.