Feat/capture iframes #72
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Claude finished @olesho's task —— View job PR Review: Feat/capture iframesI've completed a thorough review of this pull request that adds iframe capturing functionality to the browser-operator-core project. Todo List
Review SummaryThis PR successfully implements iframe capture functionality across the agent-server API. The implementation is well-structured and follows the existing architectural patterns. Code Quality and Best Practices ✅Strengths:
Areas for improvement:
Potential Bugs and Issues 🟡Minor Issues:
Recommendations:
Performance Considerations 🟡Concerns:
Suggestions:
Security Considerations ✅Good practices observed:
Test Coverage ❌Critical Gap:
Recommendations:
Implementation Details ReviewAPI Server Changes (
Browser Agent Server Changes (
Documentation Quality ✅Excellent documentation updates:
Final RecommendationAPPROVE with minor suggestions - This is a solid implementation that adds valuable functionality while maintaining code quality and following existing patterns. The main concern is the lack of test coverage, which should be addressed in a follow-up PR. Suggested Follow-up Tasks
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Caution Review failedThe pull request is closed. WalkthroughAdds a new POST /page/execute API documented for remote JavaScript execution and extends page content retrieval with an Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant APIServer
participant BrowserAgentServer
participant CDP as Chrome DevTools Protocol
Client->>APIServer: POST /page/content (includeIframes: true)
APIServer->>BrowserAgentServer: getPageHTML(tabId, { includeIframes: true })
alt includeIframes = true
BrowserAgentServer->>CDP: Page.getFrameTree()
CDP-->>BrowserAgentServer: frameTree
loop each frame
BrowserAgentServer->>CDP: createIsolatedWorld / Runtime.evaluate(outerHTML) in frame
CDP-->>BrowserAgentServer: frame HTML
BrowserAgentServer->>BrowserAgentServer: append HTML with frame markers
end
BrowserAgentServer->>BrowserAgentServer: countFrames(frameTree)
BrowserAgentServer-->>APIServer: { content: aggregatedHTML, frameCount, timestamp }
else includeIframes = false
BrowserAgentServer->>CDP: Runtime.evaluate(outerHTML) (main frame)
CDP-->>BrowserAgentServer: main frame HTML
BrowserAgentServer-->>APIServer: { content, timestamp }
end
APIServer-->>Client: HTTP response (result, frameCount?, timestamp)
Estimated code review effort🎯 4 (Complex) | ⏱️ ~40 minutes
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Pre-merge checks and finishing touches✅ Passed checks (3 passed)
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Actionable comments posted: 3
♻️ Duplicate comments (1)
agent-server/README.md (1)
188-211: Document theincludeIframesparameter (same issue as CLAUDE.md).Similar to the CLAUDE.md documentation, the
/page/contentendpoint documentation should include theincludeIframesparameter. See the review comment on CLAUDE.md lines 216-227 for the suggested documentation addition.
🧹 Nitpick comments (3)
agent-server/nodejs/src/lib/BrowserAgentServer.js (1)
1207-1211: Consider uniqueness for isolated world names.The hardcoded world name
'iframe-capture'could cause issues if multiple concurrent calls tocaptureAllFramesHTMLoccur on the same tab, as each frame will try to create an isolated world with the same name.Consider appending a unique identifier:
const contextResult = await this.sendCDPCommandToTarget(tabId, 'Page.createIsolatedWorld', { frameId: frame.id, grantUniversalAccess: true, - worldName: 'iframe-capture' + worldName: `iframe-capture-${Date.now()}-${i}` });agent-server/nodejs/src/api-server.js (2)
287-287: Add type validation forincludeIframesparameter.The
includeIframesparameter is not validated. Non-boolean values could cause unexpected behavior due to JavaScript's truthy/falsy coercion (e.g.,"false"would be truthy).Add validation after line 299:
if (!['html', 'text'].includes(format)) { throw new Error('Format must be either "html" or "text"'); } + + if (includeIframes !== undefined && typeof includeIframes !== 'boolean') { + throw new Error('includeIframes must be a boolean value'); + }
306-308: Document or handle thatincludeIframesonly works with HTML format.Looking at
BrowserAgentServer.js, only thegetPageHTMLmethod implements theincludeIframesfeature. ThegetPageTextmethod doesn't have this parameter. PassingincludeIframes: truewithformat: 'text'will silently ignore the option, which could confuse users.Consider either:
- Adding a validation check
- Documenting this limitation in the endpoint docs
Option 1 (validation):
+ if (includeIframes && format === 'text') { + throw new Error('includeIframes is only supported with format="html"'); + } + // Call appropriate method based on format const result = format === 'html' ? await this.browserAgentServer.getPageHTML(tabId, { includeIframes }) : await this.browserAgentServer.getPageText(tabId, { includeIframes });Option 2 (only pass to HTML):
// Call appropriate method based on format const result = format === 'html' ? await this.browserAgentServer.getPageHTML(tabId, { includeIframes }) - : await this.browserAgentServer.getPageText(tabId, { includeIframes }); + : await this.browserAgentServer.getPageText(tabId);
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📒 Files selected for processing (4)
agent-server/README.md(1 hunks)agent-server/nodejs/CLAUDE.md(4 hunks)agent-server/nodejs/src/api-server.js(2 hunks)agent-server/nodejs/src/lib/BrowserAgentServer.js(2 hunks)
🧰 Additional context used
🪛 ESLint
agent-server/nodejs/src/lib/BrowserAgentServer.js
[error] 1169-1169: There must be no hyphen before @param description.
(jsdoc/require-hyphen-before-param-description)
[error] 1170-1170: There must be no hyphen before @param description.
(jsdoc/require-hyphen-before-param-description)
[error] 1177-1177: Unexpected parentheses around single function argument.
(@stylistic/arrow-parens)
[error] 1259-1259: There must be no hyphen before @param description.
(jsdoc/require-hyphen-before-param-description)
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- GitHub Check: claude-review
🔇 Additional comments (7)
agent-server/nodejs/CLAUDE.md (1)
228-317: LGTM! Comprehensive endpoint documentation.The
/page/executeendpoint documentation is thorough and well-structured, including:
- Clear parameter descriptions
- Response field explanations
- Multiple practical examples
- Use cases that help users understand when to use this endpoint
agent-server/nodejs/src/lib/BrowserAgentServer.js (4)
1113-1165: LGTM! Clean implementation with backward compatibility.The enhanced
getPageHTMLmethod properly:
- Maintains backward compatibility with
includeIframesdefaulting tofalse- Branches cleanly between main-frame-only and iframe-inclusive paths
- Returns appropriate metadata (
frameCount) when iframes are included- Includes clear logging for both paths
1233-1240: LGTM! Appropriate error handling for frame capture failures.Individual frame capture failures are logged as warnings but don't fail the entire operation. This is the right approach since:
- Some iframes may be cross-origin and inaccessible
- Partial content is better than no content
- The main frame capture (which is most important) is handled separately
1262-1270: LGTM! Clean recursive frame counting.The
countFramesmethod correctly implements recursive counting with proper base case and accumulation.
1207-1211:grantUniversalAccess: trueusage verified as safe for the current read-only application.The isolated world is used exclusively to execute a single, hardcoded DOM query (
document.documentElement.outerHTML) with no dynamic code execution or untrusted input. WhilegrantUniversalAccess: truedoes break same-origin isolation and allow cross-origin DOM access/modification—creating a significant security capability, the risk here is minimal because:
- Only a static, read-only expression evaluates in the context
- Results are returned as HTML strings with no code execution
- No untrusted data flows into the isolated world
The current implementation is safe. No changes required.
agent-server/nodejs/src/api-server.js (1)
310-324: LGTM! Clean response construction with optional frameCount.The response construction properly handles the optional
frameCountfield, only including it when present in the result. This maintains backward compatibility while exposing new metadata.agent-server/README.md (1)
213-297: LGTM! Complete and user-friendly endpoint documentation.The
/page/executedocumentation is excellent:
- Clear parameter descriptions with defaults
- Detailed response field explanations
- Multiple practical curl examples
- Well-explained use cases
- Proper context about how it complements
/page/content
| const frames = []; | ||
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| // Helper to recursively collect frames | ||
| const collectFrames = (node) => { |
There was a problem hiding this comment.
Fix ESLint arrow-parens violation.
The single-parameter arrow function has unnecessary parentheses.
Apply this diff:
- const collectFrames = (node) => {
+ const collectFrames = node => {
frames.push(node.frame);
if (node.childFrames) {
node.childFrames.forEach(collectFrames);
}
};📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const collectFrames = (node) => { | |
| const collectFrames = node => { | |
| frames.push(node.frame); | |
| if (node.childFrames) { | |
| node.childFrames.forEach(collectFrames); | |
| } | |
| }; |
🧰 Tools
🪛 ESLint
[error] 1177-1177: Unexpected parentheses around single function argument.
(@stylistic/arrow-parens)
🤖 Prompt for AI Agents
In agent-server/nodejs/src/lib/BrowserAgentServer.js around line 1177, the arrow
function parameter is wrapped in unnecessary parentheses causing an ESLint
arrow-parens violation; change the declaration from using parentheses to the
single-parameter form (remove the surrounding parentheses so it reads node =>
...) and ensure the file still passes linting after the update.
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Claude finished @olesho's task —— View job PR Review: Feat/capture iframes Todo List
Review SummaryThis PR successfully implements iframe capturing functionality across the agent-server API. The implementation is well-structured and follows the existing architectural patterns. Code Quality and Best Practices ✅Strengths:
Areas for improvement:
Potential Bugs and Issues 🟡Minor Issues:
Recommendations:
Performance Considerations 🟡Concerns:
Suggestions:
Security Considerations ✅Good practices observed:
Test Coverage ❌Critical Gap:
Recommendations:
Implementation Details ReviewAPI Server Changes (
Browser Agent Server Changes (
Documentation Quality ✅Excellent documentation updates:
Final RecommendationAPPROVE with minor suggestions - This is a solid implementation that adds valuable functionality while maintaining code quality and following existing patterns. The main concern is the lack of test coverage, which should be addressed in a follow-up PR. Suggested Follow-up Tasks
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Summary by CodeRabbit
New Features
Documentation
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