Does the js referenced at the end of the Safari block page rendering?

to reflect the effect, 1.js is a large file.

<body>
Hello
<script src="1.js" defer>
</script>
</body>

after visiting the page, you should immediately display "Hello", and then continue to load js, in the background, but it will go blank on Safari at the beginning, and wait until js loads before displaying "Hello".

both MacOS 11.13.4 and iOS 11.3 have this problem, while the latest Google and Firefox are fine.

could you tell me how to solve the problem?

Safari javascript render

Mar.03,2021

reference: places the JavaScript file at the head or tail of the document

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MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1becffa-460d2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1becffa-460d2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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