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[BUG] Illegal RegExp in Safari in 3.0.0-beta.1 and beta.2 #1314

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sdabet-orpheo opened this issue Jun 13, 2023 · 14 comments
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[BUG] Illegal RegExp in Safari in 3.0.0-beta.1 and beta.2 #1314

sdabet-orpheo opened this issue Jun 13, 2023 · 14 comments
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bug Something isn't working

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@sdabet-orpheo
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Describe the bug:
Since I upgraded from 3.0.0-alpha6 to beta2, I have an issue on old Safari versions. The Html widget renders as a gray area and I see in the console the error:

FormatException: Illegal RegExp pattern (SyntaxError: Invalid regular expression: invalid group specifier name)
(?<=\n) *

HTML to reproduce the issue:
Any HTML content

Html widget configuration:
No specific configuration

Expected behavior:
HTML properly rendered, instead of gray area.

Screenshots:

Device details and Flutter/Dart/flutter_html versions:
iOS 12.5.5, flutter_html 3.0.0-beta.2

Stacktrace/Logcat

FormatException: Illegal RegExp pattern (SyntaxError: Invalid regular expression: invalid group specifier name)
(?<=\n) *

Additional info:

A picture of a cute animal (not mandatory but encouraged)
@sdabet-orpheo sdabet-orpheo added the bug Something isn't working label Jun 13, 2023
@bsubash2054
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bsubash2054 commented Jun 15, 2023 •
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I am also experiencing this issue. This issue seems to arise because Safari doesn't support lookbehind assertion.

@Sub6Resources
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To clarify, is this happening on MacOS Safari, or just on iOS?

@sdabet-orpheo
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@Sub6Resources I just experienced it on iOS

@bsubash2054
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@Sub6Resources Its occurring on MacOs too.

@aalloul
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aalloul commented Jun 27, 2023

I'm experiencing the same thing. It works great on Mac (Chrome and Safari), on android (chrome, firefox) but not on iOS Safari

@harismairaj
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I'm experiencing same issue on MAC (Safari).
image

@Toolenaar
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Same issue here any fixes or workarounds ?

@flutterdev06
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@Toolenaar use the package locally and comment out the code that is using the regex : (?<=\n)

@erickok erickok mentioned this issue Sep 11, 2023
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@NicolasDionB
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I can confirm that simply commenting the faulting line in whitespace.dart fixes the issue. Cheers @flutterdev06!

StruggleXL added a commit to StruggleXL/flutter_html that referenced this issue Nov 25, 2023
@StruggleXL
fix:[BUG] Illegal RegExp in Safari in 3.0.0-beta.1 and beta.2 Sub6Res…
b576b8b 
…ources#1314
@Sub6Resources Sub6Resources moved this to Todo in flutter_html Dec 18, 2023
@stefanhk31 stefanhk31 mentioned this issue Apr 26, 2024
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@stefanhk31
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In case it helps other people: I have found this issue as well on ^3.0.0-alpha.3. I don't see it on the latest versions of iOS (17.4.x), but I spun up a simulator with iOS 16.2 and could see it there.

verygoodstefan added a commit to stefanhk31/flutter_html that referenced this issue Apr 27, 2024
@verygoodstefan
commenting out regexp that breaks ios safari
6072fe1 
Sub6Resources#1314
@stefanhk31 stefanhk31 mentioned this issue Apr 27, 2024
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kaierwen added a commit to kaierwen/flutter_html that referenced this issue May 14, 2024
@kaierwen
fix Sub6Resources#1314
08fa803
SherpaMiguel added a commit to SherpaMiguel/flutter_html that referenced this issue May 25, 2024
@SherpaMiguel
1314 - Issue que no permite usar el plugin en iOS 15 e inferiores
e07b904 
Sub6Resources#1314
@SherpaMiguel
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Could it please be solved to stop forking the plugin?

@stefanhk31
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@SherpaMiguel I don't think this package is being actively maintained anymore. I have since switched my app to a new package.

@SherpaMiguel
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@stefanhk31 i'm doing the same 😢

@Sub6Resources
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Fixed in #1444, should be released in 3.0.0 shortly.

@github-project-automation github-project-automation bot moved this from Todo to Done in flutter_html Mar 11, 2025
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@Toolenaar @aalloul @harismairaj @Sub6Resources @NicolasDionB @SherpaMiguel @bsubash2054 @stefanhk31 @sdabet-orpheo @flutterdev06