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    <p>The issue was solved by deleting the web app from the home screen, surfing to the page in Safari and re-adding it to the home screen as a new web app.</p> <p>My guess is that the problem lies in the meta data that iOS stores at the moment a web app is added to the home screen (such as the values in the <code>apple-mobile-web-app-capable</code> and <code>apple-touch-startup-image</code> meta tags).</p> <p>At least some of that information does not seem to get refreshed when accessing the page as a web app, even when it starts serving completely different content (such as the empty page shown in the question). I know this is true for the <code>apple-mobile-web-app-capable</code> meta tag; adding that tag to a site that has already been installed to the home screen does not suddenly make it a native-looking web app; the tag has to be present at the moment of adding the web app to the home screen.</p> <p>I think I must have installed the initial web app at a stage of development where the page referred to a non-existent resource (such as an image, CSS or JS file), resulting in a web app that keeps looking for non-existent content even though the current web page is no longer referring to it, possibly explaining the infinite activity indicator behavior.</p> <p>I am not certain that that is the cause, but it does seem the most likely explanation for this issue. </p> <p>If you encounter this; check that all resources your page refers to exist, then delete and re-add the web app to the screen to see if it fixes the issue.</p>
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    1. POiOS network activity indicator keeps spinning in web app added to home screen
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    1. CODefinitely that was the answer. I think that your conclusions are the point. Thanks for replying, you should tick your answer as correct, it solved my problem.
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    2. COYes, but as Kenneth Bernholm indicates, the issue reoccurs after some time, so deleting and reinstalling seems only a temporary fix. Seems like a bug on Apple's side.
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