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Firefox/webkit blank screen, locally

teo123_33643posted in #help-playwright
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Hi all, I'm using playwright's latest version. All my integration tests (starting on localhost with a specific port) run fine on Chromium/Edge, but on Firefox/Safari I get a blank screen and all my tests fail. While I'm running the tests on Firefox on debug mode, I get a 404 on localhost, BUT IF I open a new tab on the current firefox instance while on debug, and enter manually localhost:[port], the page will open just fine. Any idea?

This thread is trying to answer question "Why do integration tests fail on Firefox/Safari with a blank screen and a 404 error on localhost, but work fine when manually opening a new tab on the current Firefox instance while on debug?"

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Rayrun is a community for QA engineers. I am constantly looking for new ways to add value to people learning Playwright and other browser automation frameworks. If you have feedback, email luc@ray.run.