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Top header jumps two times while loading in Classic theme on desktop

alextester

By alextester

  • Status: Moved to GitHub

This can be observed with unstable or slow connection (or with throttling turned on, or using slow devices).

Normal speed:

phases_normal.gif

Slowed version for better understanding:

phases_all_slowed.gif

I know it is ok when it is loading slowly some things may happen, but in this particular case it jumps badly. Is it possible to make it load gracefully? :)

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    Ehren Enthusiast

    Ehren

    Administrators
    comment_103

    Hi Alex,

    What browser are you using? The header relies on the CSS :has() selector which is supported in 92% of browsers.

    Older browsers use a JS polyfill which is likely causing the flash of content which you’re experiencing. The JS was recently moved to an external file (it was originally inlined in a <script> tag), so this has likely made the delay more noticeable.

    I can relocate the JS back to inline to see if this improves your experience, but if you also have the option to upgrade your browser to a more stable version, now’s a good time to look into it 🙂

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    alextester Contributor

    alextester

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    comment_111
    3 hours ago, Ehren said:

    …

    Hi Ehren, I use the latest Firefox, but my laptop is quite old (I have a perfect testing environment 😁). So if it is JS, then it is my laptop processor I think, we could try and I will tell you results.

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    • Ehren Enthusiast

    Ehren

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    comment_112

    I saw in another topic that you have Firefox 115? The latest version is 129 but your operating system might be holding you back (Windows 7 and 8 can only run up to Firefox 115).

    I’ll adjust some of the JS tomorrow to try and improve this for older browsers.

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    alextester Contributor

    alextester

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    (edited)
    comment_114
    1 hour ago, Ehren said:

    (Windows 7 and 8 can only run up to Firefox 115).

    Yes, you’re right, it is my case

    Edited by alextester

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    • Ehren Enthusiast

    Ehren

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    comment_137

    The JS has been completely removed in favour of a hidden attribute. There will be no lag/jump in any browser once it’s been merged 🤝

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