Replies: 27 comments 35 replies
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Having the same issue, where GitHub got slower and slower in safari. For bigger PRs I can't edit anything or press on any buttons. Seems like such a big page breaks something? I also disabled all content blockers and plugins for GitHub, didn't change anything :/ (using an M3 Pro Mac with 18GB Ram) |
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Same here. Even small PRs I can't do anything. Adding reviewers, adding labels, etc... every action on the page takes many seconds. The page often locks up as well. This wasnt an issue a few weeks ago. |
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Same - I don't know what's driving the engineering behind this, but it is embarrassing. It's just getting slower and slower for no appreciable benefit. |
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Same problem over here. Renders GitHub completely useless. Nothing works. Totally frozen. |
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AFAICT this extends to all API actions triggered by the UI. Case in point, I just went to subscribe to this issue in Safari, and it took more than 20 seconds before the button state switched to "Unsubscribe". I'm now writing this comment in Chrome... 👎 |
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Our team has noticed this as well, very sluggish UI in general. Especially noticeable on pull requests and autocomplete boxes like |
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It only took about a year to go from visibly slow but usable to now annoying and completely unusable. I had to install a 3rd-party app on my Mac to automatically open all GitHub URLs in Chrome. ¯_(ツ)_/¯ |
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This is probably related to some type or combinations of CSS selectors. |
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For folks looking for a temporary workaround to add labels in Safari: After creating the issue/PR go to the |
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Does this happen with the New Files Changed experience only, or does it happen no matter what you have that set to? It's a preview feature you can turn on and off by going to "Feature Preview" when you click your avatar icon. |
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As someone who writes bugs for a living I'm careful to complain. That said, this has become a real pain point for me, personally. It's not uncommon for me to do the following things opening a PR:
I do this several times a day and within the last few weeks the page will lock up every time. Sometimes I'll refresh the browser and even that takes a while to perform. Historically I've had no issues with this in Safari. |
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Better slow than not loading at all. E.g. https://github.com/pannous/hieros/wiki/1 "The wiki page took too long to render." 2600 characters in 10 seconds should be doable despite unicode? |
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Similar problem here, starting a few weeks ago, its effectively impossible to label PRs in safari. |
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I now use https://graphite.dev instead of GitHub because their UI works fine in Safari, they support stacked PRs, and many features GitHub does not, such as actually scrolling me to the comment I was linked to 😮 Might be a helpful workaround for anyone who uses Safari as their daily driver. |
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And don't even think of trying to read the github website with a screen reader for accessibility for the visually impaired. If you don't run all javascript with a bleeding edge browser then there's no text to read at all. In this sense the github website has become extremely slow during the Microsoft ownership period: the text never shows up. |
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It's not just Safari, Github is slow, world class developpers can't be bothered to care about performance Perhaps it's time to start shrinking your salaries, since money doesn't seem to translate to better software it seems |
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This may be related to this webkit bug I opened a few days ago. A fix has been released but I have not heard anything about a new Safari release yet. |
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I’m also seeing this slowdown quite a bit. For me it’s been noticeable on Safari for a long time, especially in PRs, but over the past few days the entire site feels sluggish as hell. Chrome is much better. (For context: I was previously a PM at GitHub and often advocated for and discovered Safari bugs during my time there, so hopefully anyone on staff here who knows me will understand I’m not posting lightly!) |
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I am also experiencing the similar rendering issue in safari |
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As a Safari-only user, I didn't know it was a problem only occurring on Safari. I'm not having problems on any other sites so it's probably GH. What's more interesting is that one of the top sites used by programmers is not testing one of the most common tasks on the website with one of the most common browsers. Hope it gets fixed soon. Any large PRs is unworkable with Safari. |
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Browser native back button is broken on iOS safari too. When the one navigate source code usually it doesn’t do anything but change url. Hitting back several times with no effect and reloading page in disgust leading to jump to arbitrary url in history. Reconsider your approach to frontend development, please |
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Until this is fixed you can try some faster frontends like a TUI https://github.com/dlvhdr/gh-dash |
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Because Safari sucks, like most of Apple's software. And any dev using it and not accepting this, is in denial. Go ahead, bring me the dislikes (hopefully the emoji interaction is still working in your Safari). |
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Bug
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Over the past few months, Github has been getting slower and slower on Safari. It has now reached a point where it is unusable.
Displaying any pull request with more than a thousand lines changed or even browsing any file with a thousand or more lines of code is fully broken.
What happens:
I have a 16-inch MacBook Pro with a 16-cores Apple M4 Max and 48GB of RAM, using it plugged-in with performance mode enabled. It's one of the most powerful laptops on the market today. Github is the only website I know that doesn't run on it.
This is Safari specific, Google Chrome on the same machine performs way better (although it still struggles with very large pull requests). I'm using Safari 18.6 (20621.3.11.11.3) on macOS Sequoia 15.6 with no extensions installed.
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