A link that exploits a bug in iOS and Mac devices was shared on Twitter this afternoon, and if you receive this link through the Messages app, your iPhone or iPad can freeze up or respring, and the Messages app can become unusable.

The link, which goes to a Github page, breaks the Messages app and causes problems on both iOS devices and Macs. Simply receiving the link results in issues, likely due to the Messages feature that lets you preview web links. We tested the bad link and while we saw few resprings, it did reliably cause the Messages app to freeze entirely.

githubtextbug
The only solution appears to be to quit out of the Messages app and then delete the entire offending conversation to restore full functionality.

These kinds of Message-based bugs have surfaced several times in the past, with text strings, videos, and more crashing the Messages app in the past. Such bugs are not serious, but they can be highly irritating when abused as a prank.

It's best not to send the link to friends, because it can cause the sending device to freeze up and crash as well. If your device is affected, quit the Messages app on Mac or iOS, open it back up, and immediately delete the entire message thread.

On Mac, you'll need to swipe right on the trackpad or right click on to the person's name to delete the conversation, while on iOS, you'll need to swipe to the right on a person's name to bring up the delete option.

websiterestrictions
Blocking the domain using Parental Restrictions may prevent the link from affecting your iOS devices. You can turn on Restrictions on iPhone or iPad by going to Settings --> General --> Restrictions --> Websites --> Limit Adult Content and adding "GitHub.io" to the "Never Allow" list.

Update: Apple appears to have addressed the bug in iOS 11.2.5 beta 6, and Github has removed the offending webpage.

Top Rated Comments

Porco Avatar
48 months ago
IMHO, Apple should offer an option to specifically turn off web link previews, regardless of this bug.
Score: 23 Votes (Like | Disagree)
Naraxus Avatar
48 months ago
Does anyone remember when stuff like this happened to Microsoft and NOT Apple? My how times have changed.
Score: 17 Votes (Like | Disagree)
Princess Cake Avatar
48 months ago
M$ still sucks, and Apple is still better.
Remember what Steve said "We have to let go of this notion that for Apple to win Microsoft has to lose. In order for Apple to win Apple needs to do a really good job."
Score: 15 Votes (Like | Disagree)
Princess Cake Avatar
48 months ago
O̖̟̝̦h ̱l͉̰͓ooḳ,̩̗̱ ̩͓̘͔t͕͚h̬̰̗̘̣̙͔e̝̮̯̟͍ ̗̖͔̣k̗̩̩̳͓̜͔i͚d͎̯̭s̭̙̣ ̟̫̳a̞ṛ̩̮̪̣͚e͚̰̺͔̭ ̟̜̥̖͇͓̝u̱̠s̬̯̥̳̲̠in̪̲g̜̣̝̦ ͓t̬̞hḙ̳̣ ͇͙̗͈̺̮͓g̠̱̣̭̦͕͓ḽḭ̞̘t̩c̤͎h̺̬͕̜̘̲y̞͉̘ t͔̥̰e͙̭͇̼̱̹x̙̠t̜͇̝̹ͅͅ ͔̞̠̱ge͚n̗e͍̦̝̺r̦͓a͇̳̣t͖̦̱͔̤̙o͓̭̗̹̤̜̼r͔͙̗̬̞̼͚:rolleyes:
Score: 14 Votes (Like | Disagree)
shamino Avatar
48 months ago
So does anyone have a clue what this page is actually doing? I tried loading it in Firefox and the browser got really slow (displaying assorted cruft at the bottom of the browser window) until I closed the tab.

Update

After viewing the page's source code, it's just ugly nonsense exploiting a bug in the browser.

The page's header has a meta tag (og.title (http://ogp.me/)) where the content is several MB of text, consisting mostly of Unicode cascading accent marks. Following by a "mailto" URL containing similar junk. The content causes most software (capable of displaying Unicode, of course) to slow down a lot.

Pretty juvenile. But iOS's Mobile Safari and Messages shouldn't crash in the face of this. This may indicate a more serious bug somewhere in Apple's Unicode rendering engine.

IMO, although it probably violates the standard, I think software should put a limit on the number of cascading accents one may attach to a single character. If there were a limit of 100 (for example), it would probably never interfere with legitimate text and text designed to abuse the feature would simply fail to render. The only people offended would be those trying to write browser-crashing text and a few uber-pedantic Unicode geeks.
Score: 10 Votes (Like | Disagree)
Paradoxally Avatar
48 months ago
Apple is lost. This is the effective power bug all over again.
Score: 10 Votes (Like | Disagree)

Top Stories

calculatorapp

iOS 11 Bug: Typing 1+2+3 Quickly in the Calculator App Won't Get You 6

Tuesday October 24, 2017 2:03 pm PDT by
A bug in the built-in Calculator app in iOS 11 is getting some major attention this week, despite the fact that it's been around since iOS 11 was in beta testing. At issue is a calculator animation that causes some symbols to be ignored when calculations are entered in rapid succession. You can try it for yourself: Type 1+2+3 and then the equals sign into the Calculator app quickly. Due to...
gradiente iphone white

Brazilian Electronics Company Revives Long-Running iPhone Trademark Dispute

Tuesday May 19, 2020 1:06 pm PDT by
Apple has been involved in a long-running iPhone trademark dispute in Brazil, which was revived today by IGB Electronica, a Brazilian consumer electronics company that originally registered the "iPhone" name in 2000. IGB Electronica fought a multi-year battle with Apple in an attempt to get exclusive rights to the "iPhone" trademark, but ultimately lost, and now the case has been brought to...
iPhone 13 Dummy Thumbnail 2

Full iPhone 13 Feature Breakdown: Everything Rumors Say We Can Expect

Tuesday August 31, 2021 7:50 am PDT by
With the launch of Apple's iPhone 13 lineup believed to be just a few weeks away, we have compiled all of the coherent rumors from our coverage over the past year to build a full picture of the features and upgrades coming to the company's new smartphones. For clarity, only explicit improvements, upgrades, and new features compared to the iPhone 12 lineup are listed. It is worth noting that...
original iphone

Phil Schiller Says iPhone Was 'Earth-Shattering' Ten Years Ago and Remains 'Unmatched' Today

Monday January 9, 2017 7:15 am PST by
To commemorate the tenth anniversary of the iPhone, Apple marketing chief Phil Schiller sat down with tech journalist Steven Levy for a wide-ranging interview about the smartphone's past, present, and future. The report first reflects upon the iPhone's lack of support for third-party apps in its first year. The argument inside Apple was split between whether the iPhone should be a closed...
iPhone 13 Dummy Thumbnail 2

Kuo: iPhone 13 to Feature LEO Satellite Communications to Make Calls and Texts Without Cellular Coverage

Sunday August 29, 2021 7:39 am PDT by
The iPhone 13 will feature low earth orbit (LEO) satellite communication connectivity to allow users to make calls and send messages in areas without 4G or 5G coverage, according to the reliable analyst Ming-Chi Kuo. In a note to investors, seen by MacRumors, Kuo explained that the iPhone 13 lineup will feature hardware that is able to connect to LEO satellites. If enabled with the relevant...
maxresdefault

New MacBook Pro Models Coming at WWDC, Suggests Leaker

Monday May 24, 2021 1:27 pm PDT by
New MacBook Pro models are coming at WWDC, according to leaker Jon Prosser who has a mixed track record when it comes to predicting Apple's plans. Subscribe to the MacRumors YouTube channel for more videos. Prosser provided no additional information, but there are new 14 and 16-inch MacBook Pro models in the works. The new MacBook Pros will feature the most radical redesign to the MacBook Pro ...
omg lightning cable comparison

Security Researcher Develops Lightning Cable With Hidden Chip to Steal Passwords

Thursday September 2, 2021 6:59 am PDT by
A normal-looking Lightning cable that can used to steal data like passwords and send it to a hacker has been developed, Vice reports. The "OMG Cable" compared to Apple's Lightning to USB cable. The "OMG Cable" works exactly like a normal Lightning to USB cable and can log keystrokes from connected Mac keyboards, iPads, and iPhones, and then send this data to a bad actor who could be over a...
iphone 12 colors 2021

iPhone 12 Colors: Deciding on The Right Color

Thursday November 5, 2020 8:35 am PST by
The iPhone 12 and iPhone 12 Pro arrived last October in a range of color options, with entirely new hues available on both devices, as well as some popular classics. The 12 and 12 Pro have different color choices, so if you have your heart set on a particular shade, you might not be able to get your preferred model in that color. iPhone 12 mini and iPhone 12 The iPhone 12 mini and iPhone 12...
Top Stories 75 Thumbnail

Top Stories: Last-Minute iPhone 13 Rumors, Apple Announces App Store Changes, and More

Saturday September 4, 2021 6:00 am PDT by
The finish line is in sight! Apple's annual iPhone event is likely just a week or so away and all eyes will be on the company as it unveils the next version of its most popular product line. With any luck, we'll also see the next-generation Apple Watch and perhaps even some new AirPods. Other news this week saw Apple making some more changes to its App Store policies in response to a...
M1X MBP Feature

Leaker: Upcoming MacBook Pro to See Price Hike Over Current Model, Equal Performance Across 14 and 16-Inch Sizes

Tuesday August 24, 2021 5:28 am PDT by
The upcoming 14-inch MacBook Pro is set to be more expensive than the current 13-inch MacBook Pro and both the 14 and 16-inch models will offer the same performance, according to the leaker known as "Dylandkt." The leaker shared the information on Twitter, explaining that both of the upcoming MacBook Pro models, expected to come in 14 and 16-inch sizes, will feature the same performance due...