Inconsistency: DNR Redirect Action using regexSubstitution

[lukeselker]

The DNR redirect action type allows for 4 optional properties: extensionPath, regexSubstitution, transform, and url.

https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/declarativeNetRequest/Redirect

Sample Rule Configuration:

browser.declarativeNetRequest.updateDynamicRules({ addRules: [
  { 
    action: {redirect: {regexSubstitution: "[https://www.somesite.com/\\1](https://www.somesite.com///1)"}, type: "redirect"}, 
    condition: {regexFilter: ".*?://test/(.*?)", resourceTypes: ["main_frame"]}, 
    priority: 1, 
    id: 1,
  }
]})

When updating rules, there are no issues when specifying in Firefox/Chrome, but when specifying in Safari, the following error is thrown by the browser:

`redirect` is missing either a `url`, `extensionPath`, or `transform` key

It seems that this should be supported, and the issue has been reported here as well - https://bugs.webkit.org/show_bug.cgi?id=244475

[lukeselker]

Hi,

It seems that this issue has been resolved as of the latest Safari Technology Preview. However, after getting past this I ran into another inconsistency with redirects. I've opened another issue here (#381)

[zombie]

Confirmed from the Safari team as resolved in current STP, closing.