Wait for iframe navigation

How I can wait for an iframe that triggers a post to server?

Following is not working

script1: //not working
const [response] = await Promise.all([
    page.waitForNavigation()
    page.click("#iframe_1");
]);

script2: //not working
await page.waitForSelector("#iframe_1");

I need to wait for post response but I frame does not causes a page navigation the looks like waitForSelector will not works

Could you suggest a strategy to follow?

[vsemozhetbyt]

1. Are you sure that this frame is already available when you call page.frames()?
2. If the mentioned option is inside the iframe, then you need frame.select(), not page.select() (and without extra away).

So can you try this:

await page.waitForSelector('iframe#basefrm');
const frame = page.frames().find(fr => fr.name() === 'basefrm');

const [response1] = await Promise.all([
  frame.waitForNavigation(),
  frame.select("input > button", "1")
]);

[aslushnikov]

@AlonsoK28 you can use frame.waitForNavigation to wait for navigation of a particular frame.

Note: this API is available in Puppeteer v1.9.0+.