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[ENGG-1977] MV3: 2KB limit for regexFilter in DNR

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#47 3 comments 5 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
typescript
Domain
devtools

Research direction

Start by reproducing the Chrome declarativeNetRequest error with host-based regex rules and review the linked regex-rules documentation. Compare the suggested URL source conditions and redirect-rule approach against the affected replace-rule use cases. Done means supported rules no longer exceed the 2KB compiled regexFilter limit.

Written by the indexing model from the issue text.

Description

type:bug

When creating host regex rules Unchecked runtime.lastError: Rule with id 1 was skipped as the "regexFilter" value exceeded the 2KB memory limit when compiled. Learn more: https://developer.chrome.com/docs/extensions/reference/api/declarativeNetRequest#regex-rules

Possible Solutions

1. Using URL source conditions instead of HOST source conditions

If you are using HOST - EQUALS | CONTAINS | MATCHES | WILDCARD, then try switching it to URL source condition.

2. Try using Redirect Rule

Almost all the usecases that are supported by replace rule are also supported by Redirect Rule . Try creating a redirect rule instead

Some patterns to convert Replace rule into Redirect rule

Pattern 1

Current Replace Rule
CleanShot 2024-06-27 at 12 51 57@2x

Converted Redirect Rule
CleanShot 2024-06-27 at 12 55 11@2x

Pattern 2

Current Replace Rule
CleanShot 2024-06-27 at 13 36 51@2x

Converted Redirect Rule
CleanShot 2024-06-27 at 13 37 23@2x

Dominant language
TypeScript
Stars
87
Forks
23
Avg merge
14h
Merged PRs (30d)
3

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Open the contributing guide

First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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