NEW272996
input type file returning 135 byte blobs 
https://bugs.webkit.org/show_bug.cgi?id=272996
Summary input type file returning 135 byte blobs
Erik Hoffmann
Reported 2024-04-19 10:19:52 PDT
We have users on 17.4.1 getting 135 byte file data when selecting mulitple on the device. Does not seem to matter what 'size' (small/medium/actual) the user selects to upload. This seems simliar to this (closed) item: ttps://bugs.webkit.org/show_bug.cgi?id=256711 Example HTML file that the users select 400+ photos; some or all the photos send up with size = 135 bytes <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title></title> <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script> <script> $(function() { $("#files").on("change", function(e) { console.log(e); var results = ''; Array.from(e.target.files).forEach((cur) => { let details = cur.name + ' size: ' + cur.size + ' type: ' + cur.type; console.log(details) if(cur.size < 1000) { results = results + "<span style='background-color:yellow'>" + details + "</span><br/>"; } else { results = results + details + "<br/>"; } }); $("#output").html(results); }); }); </script> </head> <body> Select files: <input id="files" title="Select photos to upload" multiple="" accept="image/jpg,image/jpeg,image/gif,image/png,image/heic,image/heif" type="file" name="qqfile" > <div id="output"></div> </body> </html>
Attachments
Shows the console output from the script in the issues (109.70 KB, image/png)
2024-05-17 05:01 PDT, Erik Hoffmann 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Erik Hoffmann
Comment 1 2024-04-19 10:30:41 PDT
NOTE: In this case, users are selecting many files (400-800+ jpeg/heic/etc images) - some of them get valid sizes, some of them get the 135 bytes
Alexey Proskuryakov
Comment 2 2024-04-22 09:20:07 PDT
Thank you for the report! To clarify, are you saying that you can reproduce with this test? Is this definitely new in 17.4.1, and worked correctly in prior 17.4.x updates?
Erik Hoffmann
Comment 3 2024-04-22 10:10:15 PDT
Correct, our tester can use that web page (which is just a file picker), select a set of photos from his device & some or all of the photos end up with that invalid size (135 bytes). I am NOT sure what specific version this started occuring on... our client started reporting issues a few months ago on various different iphones - I am not sure what versions they were on at the time.
Radar WebKit Bug Importer
Comment 4 2024-04-22 12:20:53 PDT
<rdar://problem/126875935>
Erik Hoffmann
Comment 5 2024-05-17 05:01:53 PDT
Created attachment 471432 [details] Shows the console output from the script in the issues The image shows the console output from the script in the issues. A good number of the photos show a size of 135 bytes. When we selected the specific photo one by one instead of part of a large group selection of photos - it actually had the correct size of the photo
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