Unable to pass "Predicate" argument to ``wait for`` keywords

Describe the bug I cannot pass in input of Wait For Response a predicate matcher, it is always considered as a url. Documentation states

matcher Request URL string, JavaScript regex or JavaScript function to match request by. By default (with empty string) matches first available request.

But there are no example on how to pass a predicate

To Reproduce Steps to reproduce the behavior:

Wait For Response  matcher=request => request.url() === 'https://example.com' && request.method() === 'GET'

Expected behavior Wait for the request with given url and method

Desktop (please complete the following information):

• OS: MacOS
• Browser: Chromium
• Version: robotframework-browser==9.0.2

Additional context Note that my need behind is to be able to wait for a specific request method (sometimes I am polluted with the OPTIONS requests, so I want to filter them out)

[rsandbach]

This should be resolved with #1533. I wasn’t sure how to associate it with this issue.

[jpobley]

Desktop (please complete the following information): OS: MacOS 11.6 Browser: Chromium Version: robotframework-browser==10.0.3

I also ran into this issue. Curiously, waitForRequest and waitForResponse do different things; I’m not sure if it’s related:

waitForResponse

export async function waitForResponse(request: pb.Request.HttpCapture, page: Page): Promise<pb.Response.Json> {
    const urlOrPredicate = new RegExp(`.*${request.getUrlorpredicate()}`);
    ...
    ...
}

waitForRequst

export async function waitForRequest(request: pb.Request.HttpCapture, page: Page): Promise<pb.Response.String> {
    const urlOrPredicate = request.getUrlorpredicate();
    ...
    ...
}

EDIT I removed the part of my comment regarding POST methods–it occurred to me after reading @Leemur89 's comment more carefully that I wasn’t filtering out OPTIONS requests, which would explain the protocol error.