hard limit on safari content blocker JSON.

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Created Nov ’16

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I'm trynig to translate the pi-hole.net rules (this is a blocker using dnsmasq) to json rules, but it seems that I hit an hard limit on the blocker.json...

The json domain list has ~100.000 entries. I tried to format them as a single entry with a giant "if-domain" array and as ~100.000 "block" entries. In both cases the rules seems not work.

I get a passing error 3 "loading extension" from Safari (on iOS with a description saying something along the lines of "compilation failed: too many JSON object", nothing on OS X but the error 3.

Testing is boring and difficult, because apparently you have to unload and reload the app and the extension, but it seems to begin to fail around 1.000 entries...

I was not able to find any documentation, has anyone any information or success story with significant blockerJSON files? My test app was swift, in case this matters (I don't think).

Thank you in advance.

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Answer 1

gtufano OP

Nov ’16

The actual error log is (on a iPad Pro, latest release iOS 10.x):

Nov 10 17:05:26 gtPro Preferences(SafariServices)[3698] <Fault>: Error loading content blocker (com.blu-crab.ios.buttasek.buttasek-blocker): Error Domain=_WKUserContentExtensionsDomain Code=3 "(null)" UserInfo={NSHelpAnchor=Extension compilation failed: Too many rules in JSON array.}

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