Apple Releases Safari Technology Preview 42 With Bug Fixes and Feature Improvements

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Original poster
Apr 12, 2001
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Apple today released a new update for Safari Technology Preview, the experimental browser Apple first introduced more than a year ago in March of 2016. Apple designed the Safari Technology Preview to test features that may be introduced into future release versions of Safari.

Safari Technology Preview release 42 includes fixes and improvements for Files and Directory Entries API, Clipboard API, Fonts, CSS, Web API, WebDriver, JavaScript, Accessibility, Media, Rendering, WebGL, and Web Inspector. Today's update also implements Payment Request features.

With Safari 11 now available in macOS High Sierra, Apple is providing two versions of Safari Technology Preview, one for macOS Sierra users and one for those using macOS High Sierra.

The Safari Technology Preview update is available through the Software Update mechanism in the Mac App Store to anyone who has downloaded the browser. Full release notes for the update are available on the Safari Technology Preview website.

Apple's aim with Safari Technology Preview is to gather feedback from developers and users on its browser development process. Safari Technology Preview can run side-by-side with the existing Safari browser and while designed for developers, it does not require a developer account to download.

Article Link: Apple Releases Safari Technology Preview 42 With Bug Fixes and Feature Improvements
 

Msivyparrot

macrumors regular
Apr 5, 2017
184
78
South Africa
mail.gmail.com is now crashing, the webpage cannot load after the update, reported to Apple via the feedback assistant..not sure it will help!

2nd update..youtube.com not loading...page crashes and an error message on the screen...

Add that I am on 10.13.1 Beta (17B35a) High Sierra....
 
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Chazzle

macrumors 68000
Jul 17, 2015
1,965
2,004
Can't get any webpage to load after this update. I get the "This webpage was reloaded because a problem occurred" prompt after launching and I don't even have a homepage set.

Edit: It was my content blocker. Had to uninstall and reinstall AdGuard and now all is working properly.
 

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Last edited:

MikhailT

macrumors 601
Nov 12, 2007
4,473
1,100
Finally, you can paste images via clipboard into forms on websites. Safari was the only browser not doing this for a few years.
 

Erdbeertorte

Suspended
May 20, 2015
1,180
500
Everything is working exactly like the in previews version, no new experimental features (I had all enabled before).

But the download location bug is still there since many versions. If I choose to ask where to save it just gets saved anywhere. I think the last location I chose when right-clicking on a link and selecting download "save whatever as".

Same for the standard Safari.

Could also be a beta version bug of the OS. I almost never had a final version since a long time on my Macs (The last one was a downgrade to Yosemite and Safari 10.02 beta). Several clean macOS installs also haven't fixed it.


If you have problems look into the Debug menu.

To let it show up paste this in Terminal and press Return/Enter:

Code:
defaults write com.apple.SafariTechnologyPreview IncludeInternalDebugMenu 1
or for standard Safari:

Code:
defaults write com.apple.Safari IncludeInternalDebugMenu 1
Screen Shot 9.png
 
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cmChimera

macrumors 68040
Feb 12, 2010
3,983
2,865
Can't get any webpage to load after this update. I get the "This webpage was reloaded because a problem occurred" prompt after launching and I don't even have a homepage set.

Edit: It was my content blocker. Had to uninstall and reinstall AdGuard and now all is working properly.
Thank you for the edit. Was having the same issue.
 
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Msivyparrot

macrumors regular
Apr 5, 2017
184
78
South Africa
Yeah, reporting the same issue with AdGuard and the result uninstall and re-install, after unchecking each extension, till the problem resolved, thanks...

New issue, well..ongoing issue...Since the introduction of Safari technology Preview...The left margin on youtube.com covers the first few characters of the far left row of video thumbnails, report after each update of High Sierra and or Safari technology preview....nothing is fixed...
Screen Shot 2017-10-19 at 06.50.57.png
 

nvmls

macrumors 6502a
Mar 31, 2011
940
2,166
Facepalm.. stuff still broken since release 1 my god.. and wait for someone to come and post how they've been using it with no issues for social media & news (not like they didn't break facebook usage before either).

-Fixed navbars flickering.. how much time you need to fix this apple? it's been reported tons of times and all over the internet (e.g. go to nederlia.com and scroll down)
-Broken scrolling (go to jsfiddle.net or codepen.io and simply copy a bunch of lorem ipsum text to force scrolling on the output window, never happens.)
-Web inspector, now we can edit selectors but we can't select them entirely with just a click like every other browser.. good thinking.
-Crashes again?!
-Tab management getting stuck on the few prior to the last one to the right when too many tabs are open and turn scrollable to the sides, at this point clearly they don't want/don't know the fix, reported as well.
-Go to gs.statcounter.com click "edit chart data", modify some options and click "view chart data", nothing happens, works fine on every other browser.
-Took away keyboard shortcut for inspector responsive mode.. I guess it's not very used on a dev edgy browser so we can forget about re-mapping to another key command clearly.
-Commenting some css properties on inspector and de-commenting them won't toggle the property back on the rendering page, again very old reported bug.
-Sites within the same domain but with different pinned icons set will share either one, not able to separate them.
-Media playback is still buggy, sometimes will go black and audio keeps playing in the background.
-Searching through the URL bar takes forever, has been reported tons of times as well.

No wonder people complain about chrome's memory usage when stuff actually works.
 

Robert.Walter

macrumors 68000
Jul 10, 2012
1,579
1,708
It is probably a macOS thing but I have found in changing the email address on many sites in the last days, that although Keychain is already pretty good at recognizing, generating and storing solo password changes (although very inconsistent in offering the update drop down) is absolutely lame at saving a solo email address update.

I have found that I have to copy the entered email address and then Cmd+, open passwords, Cmd+F to search the domain, click the email addy, Cmd+A to select, then Cmd+P the new addy in.

Keychain’s e/m update feature needs a lot of love, and the p/w update feature is still not where it needs to be.
 
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