diff --git a/doc/robust-externalize.pdf b/doc/robust-externalize.pdf
index 404690c..39498d9 100644
Binary files a/doc/robust-externalize.pdf and b/doc/robust-externalize.pdf differ
diff --git a/doc/robust-externalize.tex b/doc/robust-externalize.tex
index 0df38fc..d689f93 100644
--- a/doc/robust-externalize.tex
+++ b/doc/robust-externalize.tex
@@ -147,7 +147,7 @@ \section{A taste of this library}
 
 Since v2.3 we also provide a way to include online pictures with |\includegraphicsWeb|:
 \begin{codeexample}[width=0pt,vbox]
-Here is a picture of cat downloaded online: \includegraphicsWeb[width=3cm]{http://placekitten.com/400/300}.
+Here is a picture of cat downloaded online: \includegraphicsWeb[width=3cm]{https://placebear.com/400/300}.
 \end{codeexample}
 
 You can also cache arbitrary code (e.g.\ python). Note that if you use a version before 2.7, you cannot indent the python code. You can also define arbitrary compilation commands, inclusion commands, and presets to fit you need. For instance, you can create a preset to obtain:
@@ -3547,6 +3547,7 @@ \subsubsection{Forward macros}\label{sec:forward}
   \makeatletter%
   \def\extrakeytext{style, }
   \extractkey/robExt/if matches=\marg{string}\marg{style to apply}\@nil
+  \extractkey/robExt/if matches else=\marg{string}\marg{style to apply if match}\marg{style to apply if no match}\@nil
   \extractkey/robExt/if matches word=\marg{string}\marg{style to apply}\@nil
   \extractkey/robExt/if matches regex=\marg{latex3 regex}\marg{style to apply}\@nil
   \extractkey/robExt/register word with namespace=\marg{namespace}\marg{word}\marg{style}\@nil
@@ -4138,7 +4139,7 @@ \subsubsection{Online images}
   \pgfmanualbody
   |\includegraphicsWeb| is used in place of |\includegraphics| to download online images:
 \begin{codeexample}[width=0pt,vbox]
-Here is a cat downloaded online: \includegraphicsWeb[width=3cm]{http://placekitten.com/400/300}.
+Here is a cat downloaded online: \includegraphicsWeb[width=3cm]{https://placebear.com/400/300}.
 \end{codeexample}
 By default, the engine uses |wget| in linux (since it is installed by default) and |curl| on windows (should also be installed by default on recent windows). But you can change it by modifying the |web image| preset (or using the optional robExt options that are loaded after |web image|):
 \begin{codeexample}[width=0pt,vbox]
@@ -4148,7 +4149,7 @@ \subsubsection{Online images}
   },
 }
 
-Here is a cat downloaded online: \includegraphicsWeb[width=3cm]{http://placekitten.com/400/303}. 
+Here is a cat downloaded online: \includegraphicsWeb[width=3cm]{https://placebear.com/400/303}. 
 \end{codeexample}
 By default, the |wget| and |curl| presets are defined as:
 \begin{verbatim}
@@ -4966,6 +4967,8 @@ \section{Changelog}
   \item Fix bug with |no cache folder|
   \item Fix bug with |add to compilation command options| not working
   \item Added |forward counter and back| and |forward counter back|
+  \item Fix infinite compilation time when input does not exist (WARNING:, it will invalidate all previously cached LaTeX documents since this adds a compilation option to LaTeX by default! If you want to use the old buggy behavior to preserve your cache, define |\robExtSetPlaceholder{__ROBEXT_LATEX_COMPILATION_COMMAND_OPTIONS__}{-halt-on-error}|. Anyway, if you want truly reproducible caching, just copy the .sty file in your project)
+  \item Support |if matches else|
   \end{itemize}
 \item v2.9 (2024/03/15)
   \begin{itemize}
diff --git a/robust-externalize.sty b/robust-externalize.sty
index b4623de..a70fabe 100644
--- a/robust-externalize.sty
+++ b/robust-externalize.sty
@@ -2373,8 +2373,8 @@ if __name__ == '__main__':
   \regex_match:nVTF {#1} \l__robExt_placeholder___ROBEXT_MAIN_CONTENT_ORIG___str {\pgfkeysalso{#2}} {}
 }
 
-\NewDocumentCommand{\robExtIfMatchesString}{mm}{
-  \str_if_in:NnTF \l__robExt_placeholder___ROBEXT_MAIN_CONTENT_ORIG___str {#1} {\pgfkeysalso{#2}} {}
+\NewDocumentCommand{\robExtIfMatchesString}{mmm}{
+  \str_if_in:NnTF \l__robExt_placeholder___ROBEXT_MAIN_CONTENT_ORIG___str {#1} {\pgfkeysalso{#2}} {\pgfkeysalso{#3}}
 }
 
 % \robExtRegisterWord {namespace} {word} {style}
@@ -3080,7 +3080,8 @@ if __name__ == '__main__':
   auto forward words/.style={auto forward words namespace={}},
   %% This will
   if matches regex/.code 2 args={\robExtIfMatchesRegex{#1}{#2}},
-  if matches/.code 2 args={\robExtIfMatchesString{#1}{#2}},
+  if matches/.code 2 args={\robExtIfMatchesString{#1}{#2}{}},
+  if matches else/.code n args={3}{\robExtIfMatchesString{#1}{#2}{#3}},
   if matches word/.code 2 args={%
     \robExtRegisterWord{}{#1}{#2}%
     % If ran inside a preset, we want to enable it, otherwise we enable it on the latex preset
@@ -3476,7 +3477,7 @@ __ROBEXT_LATEX_WRITE_DEPTH_TO_OUT_FILE__%
 
 %% Compilation commands
 \robExtSetPlaceholder{__ROBEXT_LATEX_COMPILATION_COMMAND__}{__ROBEXT_LATEX_ENGINE__ __ROBEXT_LATEX_COMPILATION_COMMAND_OPTIONS__ "__ROBEXT_SOURCE_FILE__"}
-\robExtSetPlaceholder{__ROBEXT_LATEX_COMPILATION_COMMAND_OPTIONS__}{-halt-on-error}
+\robExtSetPlaceholder{__ROBEXT_LATEX_COMPILATION_COMMAND_OPTIONS__}{-halt-on-error -interaction=nonstopmode}
 \robExtSetPlaceholder{__ROBEXT_LATEX_ENGINE__}{pdflatex}
 
 \robExtConfigure{