Attachments downloads instead of opening in a new tab

[dkrut]

Describe the Bug

After update allure from 2.23.1 to 2.24.0 changed behaviour opening attachments in report. When click to open attachment in new tab, download window opens.

Steps to Reproduce

1. Run test with adding attachment (for example, page source)
2. Generate report
   allure serve target/allure-results
3. Open test in a report
4. Click 'Open attachment in new tab'

Expected Behaviour

Attachment opens in new tab

Screenshots or Additional Context

import io.qameta.allure.Allure;
import org.junit.jupiter.api.Test;

import static com.codeborne.selenide.Selenide.open;
import static com.codeborne.selenide.WebDriverRunner.getWebDriver;

class AllureTest {
    public void attachPageSource() {
        String pageSource = getWebDriver().getPageSource();
        if (!pageSource.isEmpty()) {
            Allure.addAttachment("Page source", "text/html", pageSource, "html");
        }
    }

    @Test
    void attachSource() {
        open("http://google.com");
        attachPageSource();
    }
}

What Language are you using?

Java

What Framework/Allure Integration you are using?

allure-junit5

What version of Allure Integration you are using?

2.24.0

What version of Allure Report you are using?

2.24.0

Code of Conduct

• I agree to follow this project's Code of Conduct

[baev]

The behaviour changed due to single file mode support. For single-file reports, the only way to open attachments in the new tab is to use data links. And since all the browsers have limits for URL size, we decided to drop this feature (at least for now).

We aim to enable single-file mode by default for all users in future releases. Considering this, we prefer to avoid introducing any feature difference between classic & single-file modes.

However, we are open to hearing your feedback!